Sensors and Actuators A: Physical
|
|
- Rosamond Walton
- 5 years ago
- Views:
Transcription
1 Sensors and Actuators A 161 (2010) Contents lists available at ScienceDirect Sensors and Actuators A: Physical journal homepage: Magnetic force memory effect using a magnetostrictive material and a shape memory piezoelectric actuator composite Takeshi Morita, Tomoya Ozaki Department of Human Environmental Studies, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwanoha, Kashiwa, Chiba , Japan article info abstract Article history: Received 22 December 2009 Received in revised form 26 February 2010 Accepted 11 March 2010 Available online 18 March 2010 Keywords: Magnetostrictive material Shape memory piezoelectric actuator Composite Imprint electrical field A magnetic force memory effect was realized by applying a pulse voltage to a composite structure comprising a magnetostrictive material and a shape memory piezoelectric actuator. The latter was produced by controlling the electrical imprint field, and the magnetostrictive material attached to the shape memory piezoelectric actuator maintained a certain permeability value. This composite structure was mounted into a magnetic circuit together with a permanent magnet. By applying a pulsed voltage to the actuator, the magnetic force from the permanent magnet was modified due to a change in the permeability. Following pulse operation, two distinct magnetic forces could be maintained without electrical input Published by Elsevier B.V. 1. Introduction Recently, we have proposed a shape memory piezoelectric actuator based on control of the imprint electrical field [1 6]. This actuator exhibited a shape memory effect when subjected to a pulsed voltage [1 5]. Usually, conventional piezoelectric actuators require a DC voltage to maintain certain positions and the polarization is not reversed. This is because even if the polarization is reversed, the piezoelectric displacement returns to its previous value. However, if the piezoelectric material has an imprint electrical field, it acquires a shape memory effect, and it can be operated with a pulse-shaped voltage to reverse the polarization. Magnetic actuators, such as stepping motors, voice coil motors and solenoids are widely utilized in practical applications. However, there are difficulties in miniaturizing such actuators due to their complicated coil structure. Furthermore, the magnetic coils are operated under current flow, which results in Joule heating problems, and high response is restricted due to large inductive impedance. It is well known that Joule heating accounts for most of the energy loss in magnetic actuators. In recent years, magnetostrictive materials that exhibit giant magnetostriction (over 1000 ppm) have been produced, such as Terfenol-D (Tb x Dy 1 x Fe 2 ), and various applications of these materials have been investigated [7,8]. A voltage controllable mechanism of magnetic force was proposed by using such a material in Corresponding author. Tel.: address: morita@k.u-tokyo.ac.jp (T. Morita). combination with a piezoelectric material and a permanent magnet [9,10]. In these studies, the shape change induced by the piezoelectric actuator is utilized to change the permeability of a magnetostrictive material. The permeability change results in a change in the magnetic flux density from a permanent magnet. This principle has been applied to realize voltage control of magnetic flux density in the absence of a coil; however, to maintain a certain magnetic flux density, a continuous voltage supply to the piezoelectric actuator is required. We propose a composite structure that contains a shape memory piezoelectric actuator and a magnetostrictive material. The magnetic permeability of the magnetostrictive material is controllable by means of the strain present in the material. By using a magnetostrictive-shape memory piezoelectric actuator composite with a permanent magnet, the magnetic flux density can be controlled by a voltage applied to the shape memory piezoelectric actuator. Thereby, a coil-less structure based on voltage rather than current operation becomes possible. By attaching the shape memory piezoelectric actuator to a magnetostrictive material, the magnetic permeability can be controlled with a pulsed voltage and the memory effect can be maintained in the absence of an applied voltage. In a previous fundamental study, we have already confirmed this permeability memory effect using a similar composite [11]. In this composite, a piezoelectric plate actuator was used as the shape memory actuator; therefore its strain memory was quite small. In the previous experimental setup, it was difficult to evaluate the magnetic memory force because the magnetic circuit was closed. For this reason, the magnetic flux memory effect was examined using a Hall-effect sensor. However, by using the improved magnetic circuit structure, the magnetic force effect /$ see front matter 2010 Published by Elsevier B.V. doi: /j.sna
2 T. Morita, T. Ozaki / Sensors and Actuators A 161 (2010) Fig. 1. Principle of memory effects induced by control of the imprint electrical field. could be directly investigated in this study. In addition, using a multilayered piezoelectric actuator, a large memory effect could be realized. By combining this type of composite with a permanent magnet, it is expected that an innovative magnetic actuator with a magnetic memory effect can be developed for practical use. 2. Principle 2.1. Shape memory piezoelectric actuator We have already demonstrated a shape memory piezoelectric actuator operated by a pulse-shaped voltage [1 5]. This approach is far different from that used in conventional piezoelectric actuators. The purpose is to achieve an asymmetric piezoelectric strain curve by means of an imprint electrical field. Usually, the piezoelectric actuator has a completely symmetric butterfly curve, and has no memory effect even if the polarization is reversed. However, with an imprint electrical field, asymmetric butterfly piezoelectric curves were observed [4,5]. The imprint electrical field is an internal electrical field present in ferroelectric materials, and is a well-known phenomenon in ferroelectric thin films; however its detailed origin has yet to be clarified. The principle of the memory effect is shown in Fig. 1. Ifan imprint electrical field exists, the D E hysteresis characteristics of ferroelectric materials shift along the electrical field axis and become asymmetric. With an asymmetric butterfly curve, the shape memory piezoelectric actuator has two different stable strain values at 0 V, depending on the direction of polarization. This asymmetric feature affects not only the shape memory, but also the permittivity, optical properties, and so on. Because the shape memory piezoelectric actuator has two stable states in the absence of electrical input, it does not require any voltage to maintain its state. To switch the state, a pulsed voltage is used to reverse the polarization. Following this, no electrical energy is consumed to maintain its state Magnetic flux density memory effect Fig. 2. (a) Extension and (b) contraction conditions of the composite model. The permeability of magnetostrictive materials can be controlled by their stress. In the proposed device, the magnetostrictive material is bonded to the shape memory piezoelectric actuator, and mechanical stress is induced by the piezoelectric shape memory. A permanent magnet was used as the source of the magnetic flux to the magnetostrictive material. In this study, the magnetic circuit to convert magnetic flux into
3 268 T. Morita, T. Ozaki / Sensors and Actuators A 161 (2010) Fig. 3. Magnetostrictive-shape memory piezoelectric actuator composite. magnetic force was fabricated as shown in Fig. 2(a) and (b). In this system, the magnetostrictive material can be controlled by a voltage applied to the shape memory piezoelectric actuator. The magnetic flux from the permanent magnet flows along two flux paths in the magnetostrictive material and the outer yoke. When a positive voltage is applied, the magnetostrictive material undergoes an expansion driven by the shape memory piezoelectric actuator, as shown in Fig. 2(a). In this condition, the permeability of the magnetostrictive material becomes large due to the strain present. Therefore, a large amount of the magnetic flux from the permanent magnet is directed to the magnetostrictive material. As a result, the magnetic force to attract the outer yoke becomes small. In contrast, when a negative voltage is applied to the actuator, the magnetostrictive material contracts and the magnetic force becomes large (Fig. 2(b)). Thus, depending on the polarity of the voltage to the actuator, two different conditions can be set, and in the absence of electrical power, two different magnetic forces can be maintained. 3. Experimental setup 3.1. Fabrication process of the magnetostrictive-shape memory piezoelectric composite A multilayered lead zirconate titanate (PZT) actuator (NEC Tokin Co. Ltd., AE0505D16F) was used in the experiments. Its dimensions were 5 mm 5mm 20 mm, and the thickness of each PZT layer was 0.1 mm. The total number of layers was 130. To produce the memory effect, an imprint electrical field was applied to the actuator by means of a 400 DC voltage to the driving electrode at 110 C for 3 h in an electric oven (Yamato Co. Ltd., DKN302). The shape memory piezoelectric actuator and the Terfenol-D magnetostrictive material (Etrema Products Inc., Tb 0.3 Dy 0.7 Fe 1.92, 1mm 5mm 15 mm) were bonded using an epoxy-based adhesive to form a composite structure (Fig. 3). A strain gauge was attached to the actuator to measure the piezoelectric strain in the longitudinal direction. The output signal was calibrated by comparing the capacitive sensor output voltage before the experiments Magnetic circuit to convert magnetic flux into magnetic force Fig. 4 shows the magnetic circuit, which comprised a permanent magnet (Nd B Fe, 0.24 T), a silicon steel yoke, and the above composite. In this photo, the reverse side of the composite is up, so that the strain gauge is seen rather than the magnetostrictive plate. The magnetic force was measured using a load cell (Kyowa, LTS-1kA). Although it is difficult to see in the image, a small gap of 0.75 mm exists between the outer yoke and the magnetic yoke, and a 1320 mn offset force existed. The operating voltage came from a function generator (NF Co. Ltd., WF1946) through a voltage amplifier (NF Co. Ltd., 4010). 4. Experiments and results 4.1. Relationship between piezoelectric strain and magnetic force Fig. 4. Experimental setup. In Fig. 5 (left), the piezoelectric displacement is shown to be symmetric at the initial condition; therefore it has no memory effect. On the other hand, with an imprint electrical field, the butterfly curve was deformed and the actuator obtained the memory effect as shown in Fig. 5 (right). The applied voltage was a 1 Hz triangular waveform with an amplitude of 65 V. These parameters were decided after some trials to obtain large memory displacement. When the imprint electrical field treatment was weak, the memory gap was small. A detailed explanation is reported elsewhere [1]. The imprint electrical field treatment is similar to a conventional poling treatment; however, these conditions are much more severe than a normal poling treatment. Therefore, as shown later, the imprint electrical field continued to exist even after polarization reversal. The shape memory piezoelectric actuator was attached to the magnetostrictive material, and this composite was then inserted into the experimental setup as explained above. The piezoelectric
4 T. Morita, T. Ozaki / Sensors and Actuators A 161 (2010) Fig. 5. Relationship between piezoelectric strain and applied voltage before (left) and after imprint electrical field treatment (right) Magnetic force memory effect by pulse voltage operation Fig. 6. Relationship between piezoelectric strain and variation in Force with applied voltage. The magnetic force memory was controlled using the pulse voltage. Alternating positive and negative pulses of 65 V (pulse width: 100 ms) were applied at 0.4 Hz to the actuator. The magnetic force memory results are shown in Fig. 7. The shape memory composite exhibited two distinct stable values depending on the polarization direction. When the pulse voltage was applied, the shape memory piezoelectric actuator was subjected to a strain of 228 ppm (Fig. 7), which corresponds to that shown in Fig. 6. The magnetic flux density was controlled using the change in the permeability of the magnetostrictive material. The memory value of the magnetic force was 9.3 mn, as shown in Fig. 7. This value is almost the same as that of the asymmetric butterfly curve at 0 V, as shown in Fig. 6. From these results, the expected memory effect was confirmed, and the magnetic force memory maintained a stable value at 0 V. butterfly curve and the change in magnetic force are shown in Fig. 6. The piezoelectric strain exhibited an asymmetric curve, and the magnetic force had two distinct values at 0 V. The memory value of the strain was confirmed as 233 ppm, and that for the magnetic force was 9.2 mn. 5. Conclusion A composite structure comprising a shape memory piezoelectric actuator and a magnetostrictive material was fabricated to produce a magnetic permeability memory effect. Using this system, a memory effect was achieved in the magnetic force under the influence of a pulsed voltage. In contrast to conventional magnetic devices, the proposed device allows pulsed voltage operation, overcoming the Joule heating problems. In addition, the simple coil-less structure offers advantages for miniaturization. Optimization of this magnetic circuit is ongoing, with the aim to achieve a larger magnetic force memory for practical applications. Acknowledgements The authors would like to acknowledge Dr. Ueno and Prof. Higuchi (the University of Tokyo) for fruitful discussions. This research was partially supported by the Ministry of Education, Culture, Sports, Science, and Technology through a Grant-in-Aid for Scientific Research on Priority Areas, no. 438, Next Generation Actuators Leading Breakthroughs, and also by the Murata Science Foundation, the Futaba Electrons Memorial Foundation and Japan Chemical Innovation Institute. References Fig. 7. Change in the piezoelectric strain and the magnetic force driven by a pulsed voltage. [1] T. Morita, Y. Kadota, H. Hosaka, Shape memory piezoelectric actuator, Appl. Phys. Lett. 90 (2007) [2] Y. Kadota, H. Hosaka, T. Morita, Utilization of the permittivity memory effect for position detection of a shape memory piezoelectric actuator, Jpn. J. Appl. Phys. 47 (2008) [3] T. Morita, Y. Kadota, H. Hosaka, Fundamental study about shape memory piezoelectric actuator, in: IEEE ISAF 2007 (The 16th International Symposium on the Application of Ferroelectrics), 2007, pp
5 270 T. Morita, T. Ozaki / Sensors and Actuators A 161 (2010) [4] Y. Kadota, H. Hosaka, T. Morita, Shape memory piezoelectric actuator by controlling imprint electrical field, J. Ferroelectr. 368 (2008) [5] Y. Kadota, H. Hosaka, T. Morita, Shape memory piezoelectric actuator by controlling imprint electrical field, in: 11th European Meeting on Ferroelectricity, Abstracts, 2007, p [6] T. Ohashi, H. Hosaka, T. Morita, Refractive index memory effect of ferroelectric materials induced by electrical imprint field, Jpn. J. Appl. Phys. 47 (2008) [7] A. Bayrashev, W.P. Robbins, B. Ziaie, Low frequency wireless powering of microsystems using piezoelectric-magnetostrictive laminate composites, Sens. Actuat. 114 (2004) [8] J. Ryu, A. Vazquez Carazo, K. Uchino, H.-E. Kim, Magnetoelectric properties in piezoelectric and magnetostrictive laminate composite, Jpn. J. Appl. Phys. 40 (2001) [9] T. Ueno, T. Higuchi, Novel composite of magnetostrictive material and piezoelectric actuator for coil-free magnetic force control, Sens. Actuat. 129 (1 2) (2006) [10] T. Ueno, C.S. Keat, T. Higuchi, Linear step motor based on magnetic force control using composite of magnetostrictive and piezoelectric materials, IEEE Trans. Magn. 43 (1) (2007) [11] T. Ozaki, H. Hosaka, T. Morita, Magnetic flux memory effect using a magnetostrictive material-shape memory piezoelectric, Sens. Actuat. 154 (2009) Biographies Takeshi Morita was born in He received BEng, MEng and Dr Eng degrees in precision machinery engineering from the University of Tokyo in 1994, 1996 and 1999, respectively. After being a postdoctoral researcher at RIKEN (the Institute of Physical and Chemical Research) and at EPFL (Swiss federal institute of technology), he became a research associate at Tohoku University in Since June 2005, he has been an associate professor at The University of Tokyo. His research interests are a hydrothermal method for ferroelectric thin films, piezoelectric actuators and its control systems. Tomoya Ozaki was born in After receiving the BE (2007) degree from the University of Tokushima, he engaged in the research on the magnetic memory devices using the shape memory piezoelectric actuator. For this research, he received the ME (2009) degrees from the University of Tokyo. Now, he belongs to Sony Corp., and working on the optical disc devices.
ACOUSTIC EMISSION MEASUREMENTS ON PIEZOELECTRIC/ FERROELECTRIC MATERIALS
ACOUSTIC EMISSION MEASUREMENTS ON PIEZOELECTRIC/ FERROELECTRIC MATERIALS HIDEAKI ABURATANI Kitakyushu National College of Technology, Kokura-minami, Kitakyushu, Fukuoka, Japan Abstract Ferroelectric materials
More informationInvestigation of magneto-mechanical properties of Galfenol for coil-less magnetic force control using inverse magnetostrictive effect
Ames Laboratory Conference Papers, Posters, and Presentations Ames Laboratory 5-2-25 Investigation of magneto-mechanical properties of Galfenol for coil-less magnetic force control using inverse magnetostrictive
More informationPERFORMANCE OF HYDROTHERMAL PZT FILM ON HIGH INTENSITY OPERATION
PERFORMANCE OF HYDROTHERMAL PZT FILM ON HIGH INTENSITY OPERATION Minoru Kuribayashi Kurosawa*, Hidehiko Yasui**, Takefumi Kanda** and Toshiro Higuchi** *Tokyo Institute of Technology, Dept. of Advanced
More informationFundamental Study of a Stacked Lithium Niobate Transducer
Jpn. J. Appl. Phys. Vol. 40 (2001) pp. 3801 3806 Part 1, No. 5B, May 2001 c 2001 The Japan Society of Applied Physics Fundamental Study of a Stacked Lithium Niobate Transducer Takeshi MORITA, Toshiki NIINO
More informationA Miniaturized Levitation System With Motion Control Using a Piezoelectric Actuator
666 IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY, VOL. 10, NO. 5, SEPTEMBER 2002 A Miniaturized Levitation System With Motion Control Using a Piezoelectric Actuator Takeshi Morita, Member, IEEE, Katsumi
More informationEvaluation of a surface acoustic wave motor with a multi-contact-point slider
Smart Mater. Struct. 7 (1998) 305 311. Printed in the UK PII: S0964-1726(98)91230-7 Evaluation of a surface acoustic wave motor with a multi-contact-point slider Minoru Kuribayashi Kurosawa, Makoto Chiba
More informationSurface Acoustic Wave Linear Motor
Proc. of 3rd Int. Heinz Nixdorf Symp., pp. 113-118, Paderborn, Germany, May, 1999 Surface Acoustic Wave Linear Motor Minoru Kuribayashi Kurosawa and Toshiro Higuchi Dept. of Precision Machinery Engineering,
More informationAn Energy Circulation Driving Surface Acoustic Wave Motor
An Energy Circulation Driving Surface Acoustic Wave Motor Minoru K. Kurosawa Tokyo Institute of Technology Yokohama, Japan mkur@ae.titech.ac.jp Purevdagva Nayanbuu Tokyo Institute of Technology Yokohama,
More informationINTRODUCTION TO PIEZO TRANSDUCERS
PIEZO SYSTEMS, INC. 65 Tower Office Park Woburn, MA 01801 USA Tel: 781 933 4850 Fax: 781 933 4743 email: sales@piezo.com Find Search for a product or category HOME PRODUCTS CUSTOM OEM CATALOG TECHNICAL
More informationLaser Interferometric Displacement Measurements of Multi-Layer Actuators and PZT Ceramics
Ferroelectrics, 320:161 169, 2005 Copyright Taylor & Francis Inc. ISSN: 0015-0193 print / 1563-5112 online DOI: 10.1080/00150190590967026 Laser Interferometric Displacement Measurements of Multi-Layer
More informationSingle-phase driven ultrasonic motor using two orthogonal bending modes of sandwiching. piezo-ceramic plates
Single-phase driven ultrasonic motor using two orthogonal bending modes of sandwiching piezo-ceramic plates Yuting Ma 1,2, Minkyu Choi 2 and Kenji Uchino 2 1 CAS Key Lab of Bio-Medical Diagnostics, Suzhou
More informationLinear Magnetostrictive Models in Comsol
Presented at the COMSOL Conference 2009 Boston ETREMA Products, Inc. Linear Magnetostrictive Models in Comsol Comsol Conference 2009 October 8-10, 2009 Boston, MA 10/23/2009 Sponsored in part by ONR Contract
More informationPiezoelectric Composites as Bender Actuators
Integrated Ferroelectrics, 71: 221 232, 2005 Copyright Taylor & Francis Inc. ISSN 1058-4587 print / 1607-8489 online DOI: 10.1080/10584580590964673 Piezoelectric Composites as Bender Actuators Karla Mossi,
More informationME 515 Mechatronics. Overview of Computer based Control System
ME 515 Mechatronics Introduction to Sensors I Asanga Ratnaweera Department of Faculty of Engineering University of Peradeniya Tel: 081239 (3627) Email: asangar@pdn.ac.lk Overview of Computer based Control
More informationA cylindrical shaped micro ultrasonic motor utilizing PZT thin film 1.4 mm in diameter and 5.0 mm long stator transducer
Ž. Sensors and Actuators 83 2000 225 230 www.elsevier.nlrlocatersna A cylindrical shaped micro ultrasonic motor utilizing PZT thin film ž / 1.4 mm in diameter and 5.0 mm long stator transducer Takeshi
More informationFinite element analysis of combined magnetoelectric- electrodynamic vibration energy converter
Journal of Physics: Conference Series PAPER OPEN ACCESS Finite element analysis of combined magnetoelectric- electrodynamic vibration energy converter To cite this article: Sonia Bradai et al 2015 J. Phys.:
More informationTesting and analysis of high frequency electroelastic characteristics of piezoelectric transformers
Arch. Mech., 59, 2, pp. 119 131, Warszawa 2007 Testing and analysis of high frequency electroelastic characteristics of piezoelectric transformers F. NARITA, Y. SHINDO, F. SAITO, M. MIKAMI Department of
More informationThe Use of Multiphysics Models in the Design and Simulation of Magnetostrictive Transducers. Dr. Julie Slaughter ETREMA Products, Inc Ames, IA
The Use of Multiphysics Models in the Design and Simulation of Magnetostrictive Transducers Dr. Julie Slaughter ETREMA Products, Inc Ames, IA 1 ETREMA Products, Inc. Designer and manufacturer of technology
More informationVoltage generation induced by mechanical straining in magnetic shape memory materials
JOURNAL OF APPLIED PHYSICS VOLUME 95, NUMBER 12 15 JUNE 2004 Voltage generation induced by mechanical straining in magnetic shape memory materials I. Suorsa, J. Tellinen, K. Ullakko, and E. Pagounis a)
More informationPiezoelectric Resonators ME 2082
Piezoelectric Resonators ME 2082 Introduction K T : relative dielectric constant of the material ε o : relative permittivity of free space (8.854*10-12 F/m) h: distance between electrodes (m - material
More informationModule 6: Smart Materials & Smart Structural Control Lecture 33: Piezoelectric & Magnetostrictive Sensors and Actuators. The Lecture Contains:
The Lecture Contains: Piezoelectric Sensors and Actuators Magnetostrictive Sensors and Actuators file:///d /chitra/vibration_upload/lecture33/33_1.htm[6/25/2012 12:42:09 PM] Piezoelectric Sensors and Actuators
More informationDevelopment of a Compressor for a Miniature Pulse Tube Cryocooler of 2.5 W at 65 K
Development of a Compressor for a Miniature Pulse Tube Cryocooler of 2.5 W at 65 K N. Matsumoto, Y. Yasukawa, K. Ohshima, T. Takeuchi, K. Yoshizawa, T. Matsushita, Y. Mizoguchi, and A. Ikura Fuji Electric
More informationChapter 2 Surface Acoustic Wave Motor Modeling and Motion Control
Chapter 2 Surface Acoustic Wave Motor Modeling and Motion Control 1 Abstract For miniaturization of ultrasonic transducers, a surface acoustic wave device has an advantage in rigid mounting and high-power-density
More informationieee transactions on ultrasonics, ferroelectrics, and frequency control, vol. 45, no. 5, september
ieee transactions on ultrasonics, ferroelectrics, and frequency control, vol. 45, no. 5, september 1998 1229 Elastic Contact Conditions to Optimize Friction Drive of Surface Acoustic Wave Motor Minoru
More informationExperimental Tests and Efficiency Improvement of Surface Permanent Magnet Magnetic Gear
IEEJ Journal of Industry Applications Vol.3 No.1 pp.62 67 DOI: 10.1541/ieejjia.3.62 Paper Experimental Tests and Efficiency Improvement of Surface Permanent Magnet Magnetic Gear Michinari Fukuoka a) Student
More information7.Piezoelectric, Accelerometer and Laser Sensors
7.Piezoelectric, Accelerometer and Laser Sensors 7.1 Piezoelectric sensors: (Silva p.253) Piezoelectric materials such as lead-zirconate-titanate (PZT) can generate electrical charge and potential difference
More informationThe dynamic method of determination of the piezoelectric hydrostatic coefficients
Sensors and Actuators A 110 (2004) 318 322 The dynamic method of determination of the piezoelectric hydrostatic coefficients Petr Hana, Lidmila Burianova, Stanislav Panos 1 Department of Physics, Faculty
More informationProposal of short armature core double-sided transverse flux type linear synchronous motor
Proposal of short armature core double-sided transverse flux type linear synchronous motor Shin Jung-Seob a, Takafumi Koseki a and Kim Houng-Joong b a The University of Tokyo, Engineering Building #2 12F,7-3-1
More informatione453.eps 1 Change (or the absolute value) in the measured physical variable 2 Change in the sensor property is translated into low-power-level
3 Basic Phenomenon in Effect in Sensor Operation Sensors Prof. Dr. M. Zahurul Haq zahurul@me.buet.ac.bd http://teacher.buet.ac.bd/zahurul/ Department of Mechanical Engineering Bangladesh University of
More informationValidation of High Displacement Piezoelectric Actuator Finite Element Models
Validation of High Displacement Piezoelectric Actuator Finite Element Models Barmac Taleghani * Army Research Laboratory Vehicle Technology Directorate NASA Langley Research Center Hampton, VA ABSTRACT
More informationDAMPING CONTROL OF A PZT MULTILAYER VIBRATION USING NEGATIVE IMPEDANCE CIRCUIT
International Workshop SMART MATERIALS, STRUCTURES & NDT in AEROSPACE Conference NDT in Canada 2011 2-4 November 2011, Montreal, Quebec, Canada DAMPING CONTROL OF A PZT MULTILAYER VIBRATION USING NEGATIVE
More informationPIEZOELECTRIC TECHNOLOGY PRIMER
PIEZOELECTRIC TECHNOLOGY PRIMER James R. Phillips Sr. Member of Technical Staff CTS Wireless Components 4800 Alameda Blvd. N.E. Albuquerque, New Mexico 87113 Piezoelectricity The piezoelectric effect is
More informationRAPID positioning devices with accuracies on the order
IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL, VOL. 43, NO. 5, SEPTEMBER 1996 901 Ultrasonic Linear Motor Using Surface Acoustic Waves Minoru Kurosawa, Member, IEEE, Masakazu
More informationPiezo Theory: Chapter 1 - Physics & Design
Piezoelectric effect inverse piezoelectric effect The result of external forces to a piezoelectric material is positive and negative electrical charges at the surface of the material. If electrodes are
More informationTransduction Based on Changes in the Energy Stored in an Electrical Field
Lecture 7-1 Transduction Based on Changes in the Energy Stored in an Electrical Field - Electrostriction The electrostrictive effect is a quadratic dependence of strain or stress on the polarization P
More informationAn Autonomous Nonvolatile Memory Latch
Radiant Technologies, Inc. 2835D Pan American Freeway NE Albuquerque, NM 87107 Tel: 505-842-8007 Fax: 505-842-0366 e-mail: radiant@ferrodevices.com www.ferrodevices.com An Autonomous Nonvolatile Memory
More informationSTATIC TORQUE MEASUREMENT USING GMI STRAIN GAUGE
Journal of Optoelectronics and Advanced Materials Vol. 6, No. 2, June 2004, p. 699-703 STATIC TORQUE MEASUREMENT USING GMI STRAIN GAUGE T. Uchiyama, F. Borza *, T. Meydan Wolfson Centre for Magnetics Technology,
More informationFriction Drive Simulation of a SAW Motor with Slider Surface Texture Variation
Advances in Science and Technology Vol. 54 (28) pp 366-371 online at http://www.scientific.net (28) Trans Tech Publications, Switzerland Online available since 28/Sep/2 Friction Drive Simulation of a SAW
More informationCharacteristics Analysis of Claw-Pole Alternator for Automobiles by Nonlinear Magnetic Field Decomposition for Armature Reaction
IEEJ Journal of Industry Applications Vol.6 No.6 pp.362 369 DOI: 10.1541/ieejjia.6.362 Paper Characteristics Analysis of Claw-Pole Alternator for Automobiles by Nonlinear Magnetic Field Decomposition for
More informationI. INTRODUCTION II. SAMPLE PREPARATION JOURNAL OF APPLIED PHYSICS VOLUME 92, NUMBER 5 1 SEPTEMBER
JOURNAL OF APPLIED PHYSICS VOLUME 92, NUMBER 5 1 SEPTEMBER 2002 Longitudinal and transverse piezoelectric coefficients of lead zirconate titanateõvinylidene fluoride-trifluoroethylene composites with different
More informationCitation IEEE Transactions on Magnetics, 50(
NAOSITE: Nagasaki University's Ac Title Author(s) Reduction in Flux Loss of an Nd-Fe- Motor Yanai, Takeshi; Horita, Satoshi; Na Fukunaga, Hirotoshi Citation IEEE Transactions on Magnetics, 5( Issue Date
More informationDevelopment of a Two-axis Dual Pendulum Thrust Stand for Thrust Vector Measurement of Hall Thrusters
Development of a Two-axis Dual Pendulum Thrust Stand for Thrust Vector Measurement of Hall Thrusters Naoki Nagao, Shigeru Yokota, Kimiya Komurasaki, and Yoshihiro Arakawa The University of Tokyo, Tokyo,
More informationNon-Linear Finite Element Modeling of THUNDER Piezoelectric Actuators
Non-Linear Finite Element Modeling of THUNDER Piezoelectric Actuators Barmac K. Taleghani 1, Joel F. Campbell 2 1 Army Research Laboratory, Vehicle Technology Center, MS 230 NASA Langley Research Center,
More informationA Stacked-type Electrostatic Actuator and Measurement of its Energy Efficiency
A Stacked-type Electrostatic Actuator and Measurement of its Energy Efficiency Yoshiyuki Hata Tokyo Institute of Technology yoshiyuki@ric.titech.ac.jp Keiji Saneyoshi Tokyo Institute of Technology ksaneyos@ric.titech.ac.jp
More informationA High Power Piezoelectric Ultrasonic Linear Micromotor Using Slotted Stator
Proceedings of 20 th International Congress on Acoustics, ICA 2010 23-27 August 2010, Sydney, Australia A High Power Piezoelectric Ultrasonic Linear Micromotor Using Slotted Stator Cheol-Ho Yun (1), Brett
More informationModelling of Different MEMS Pressure Sensors using COMSOL Multiphysics
International Journal of Current Engineering and Technology E-ISSN 2277 4106, P-ISSN 2347 5161 2017 INPRESSCO, All Rights Reserved Available at http://inpressco.com/category/ijcet Research Article Modelling
More informationVibration control of a beam using linear magnetostrictive actuators
Vibration control of a beam using linear magnetostrictive actuators Seok-Jun Moon a, Chae-Wook Lim b, Byung-Hyun Kim a, Young-Jin Park b a Korea Institute of Machinery & Materials, 171 Jang-dong, Yuseong,
More informationFinite Element Analysis of Piezoelectric Cantilever
Finite Element Analysis of Piezoelectric Cantilever Nitin N More Department of Mechanical Engineering K.L.E S College of Engineering and Technology, Belgaum, Karnataka, India. Abstract- Energy (or power)
More informationUnit 3 Transducers. Lecture_3.1 Introduction to Transducers
Unit 3 Transducers Lecture_3.1 Introduction to Transducers Introduction to transducers A transducer is a device that converts one form of energy to other form. It converts the measurand to a usable electrical
More informationLarge magnetoelectric response in multiferroic polymer-based composites
PHYSICAL REVIEW B 71, 014102 (2005) Large magnetoelectric response in multiferroic polymer-based composites Ce-Wen Nan, N. Cai, Z. Shi, J. Zhai, G. Liu, and Y. Lin State Key Lab of New Ceramics and Fine
More informationProf. S.K. Saha. Sensors 1. Lecture 5 June 11, Prof. S.K. Saha. Purpose Classification Internal Sensors. External Sensors.
Lecture 5 June 11, 2009 Sensors Prof. S.K. Saha Dept. of Mech. Eng. IIT Delhi Announcement Outlines of slides in Lectures 1-4 on May 15, 18, 21, June 01, 2009, respectively, are available from: http://web.iitd.ac.in/~saha/
More informationCreep characteristics of piezoelectric actuators
REVIEW OF SCIENTIFIC INSTRUMENTS VOLUME 71, NUMBER 4 APRIL 2000 Creep characteristics of piezoelectric actuators Hewon Jung a) and Dae-Gab Gweon Department of Mechanical Engineering ME3265, Korea Advanced
More informationBENCHMARKING OF PIEZOCERAMIC MATERIALS FOR GENERATOR APPLICATION
BENCHMARKING OF PIEZOCERAMIC MATERIALS FOR GENERATOR APPLICATION Thomas Rödig www.ikts.fraunhofer.de OUTLINE Introduction Benchmarking of piezoelectric materials Energy output Degradation Proof of concept
More informationTechnical Report PZT-Silicon Cantilever Benders
Radiant Technologies, Inc. 2021 Girard SE Albuquerque, NM 876 Tel: 505-842-8007 Fax: 505-842-0366 Technical Report PZT-Silicon Cantilever Benders Subject: Displacement Measurements of Silicon Cantilevers
More informatione453.eps 1 Change (or the absolute value) in the measured physical variable 2 Change in the sensor property is translated into low-power-level
3 Basic Phenomenon in Effect in Sensor Operation Measurement & Sensors Prof. Dr. M. Zahurul Haq http://teacher.buet.ac.bd/zahurul/ Department of Mechanical Engineering Bangladesh University of Engineering
More informationPiezoelectric Vibration Energy Harvesting. Characteristics of Barium Titanate Laminates
Advances in Theoretical and Applied Mechanics, Vol. 9, 2016, no. 1, 43-54 HIKARI Ltd, www.m-hikari.com http://dx.doi.org/10.12988/atam.2016.634 Piezoelectric Vibration Energy Harvesting Characteristics
More informationLecture 19. Measurement of Solid-Mechanical Quantities (Chapter 8) Measuring Strain Measuring Displacement Measuring Linear Velocity
MECH 373 Instrumentation and Measurements Lecture 19 Measurement of Solid-Mechanical Quantities (Chapter 8) Measuring Strain Measuring Displacement Measuring Linear Velocity Measuring Accepleration and
More informationSHAPE MEMORY ALLOY ACTUATOR PROTECTED BY ROLLED FILM TUBE FOR ARTIFICIAL MUSCLE
P2-47 Proceedings of the 7th JFPS International Symposium on Fluid Power, TOYAMA 28 September 1-18, 28 SHAPE MEMORY ALLOY ACTUATOR PROTECTED BY ROLLED FILM TUBE FOR ARTIFICIAL MUSCLE Toshiya ISHIKAWA*
More informationWater-Cooled Direct Drive Permanent Magnet Motor Design in Consideration of its Efficiency and Structural Strength
Journal of Magnetics 18(2), 125-129 (2013) ISSN (Print) 1226-1750 ISSN (Online) 2233-6656 http://dx.doi.org/10.4283/jmag.2013.18.2.125 Water-Cooled Direct Drive Permanent Magnet Motor Design in Consideration
More informationSurface Acoustic Wave Atomizer with Pumping Effect
Surface Acoustic Wave Atomizer with Pumping Effect Minoru KUROSAWA, Takayuki WATANABE and Toshiro HIGUCHI Dept. of Precision Machinery Engineering, Faculty of Engineering, University of Tokyo 7-3-1 Hongo,
More informationMeasurements in Mechatronic design. Transducers
Measurements in Mechatronic design Transducers Quantities Current Voltage Torque Force Magnetic flux Distance Temperature Measurement system Physical quanties Transducer Signal conditioning Measurement
More informationPre-stressed Curved Actuators: Characterization and Modeling of their Piezoelectric Behavior
Pre-stressed Curved Actuators: Characterization and Modeling of their Piezoelectric Behavior Karla Mossi 1, Zoubeida Ounaies 1,RalphSmith 2 and Brian Ball 2 1 Virginia Commonwealth University, Richmond,
More informationComputation of magnetic field in an actuator
Computation of magnetic field in an actuator A. G. Olabi and A. Grunwald Dublin City University, School of Mechanical and Manufacturing Engineering, Glasnevin, Dublin 9, Ireland, Email: abdul.olabi@dcu.ie,
More informationElectrostatic Microgenerators
Electrostatic Microgenerators P.D. Mitcheson, T. Sterken, C. He, M. Kiziroglou, E. M. Yeatman and R. Puers Executive Summary Just as the electromagnetic force can be used to generate electrical power,
More informationSurface Magnetic Non-Destructive Testing
Surface Magnetic Non-Destructive Testing Evangelos Hristoforou 1,*, Konstantinos Kosmas 1 and Eleftherios Kayafas 2 1 School of Mining and Metallurgy Engineering, National Technical University of Athens,
More informationPiezoelectric Actuator for Micro Robot Used in Nanosatellite
Piezoelectric Actuator for Micro Robot Used in Nanosatellite R Bansevicius, S Navickaite, V Jurenas and A Bubulis PIEZOELECTRIC ACTUATOR FOR MICRO ROBOT USED IN NANOSATELLITE. R Bansevicius 1, S Navickaite,
More informationA Cryogenic Magnetostrictive Actuator using a Persistent High Temperature Superconducting Magnet, Part 1: Concept and Design
A Cryogenic Magnetostrictive Actuator using a Persistent High Temperature Superconducting Magnet, Part 1: Concept and Design Garnett C. Horner a, Leslie Bromberg b, and J.P. Teter c a NASA Langley Research
More informationTransducer. A device to which change or converts physical quantity in a more easily measurable quantity. Transducer. (Input) Sensor.
Transducer A device to which change or converts physical quantity in a more easily measurable quantity Transducer (Input) Sensor (Output) Actuator Sensor A device which senses and detects the physical
More informationNano and micro Hall-effect sensors for room-temperature scanning hall probe microscopy
Microelectronic Engineering 73 74 (2004) 524 528 www.elsevier.com/locate/mee Nano and micro Hall-effect sensors for room-temperature scanning hall probe microscopy A. Sandhu a, *, A. Okamoto b, I. Shibasaki
More informationVibration-Free Pulse Tube Cryocooler System for Gravitational Wave Detectors I
1 Vibration-Free Pulse Tube Cryocooler System for Gravitational Wave Detectors I - Vibration-Reduction Method and Measurement - T. Tomaru A, T. Suzuki A, T. Haruyama A, T. Shintomi A, N. Sato A, A. Yamamoto
More informationThe electric field induced strain behavior of single. PZT piezoelectric ceramic fiber
The electric field induced strain behavior of single PZT piezoelectric ceramic fiber Xiong Yang a, Jing Zhou a,*, Sen Zhang a, Jie Shen b, Jing Tian a, Wen Chen a, Qi Zhang ac a State Key Laboratory of
More informationOnline publication date: 23 June 2010 PLEASE SCROLL DOWN FOR ARTICLE
This article was downloaded by: [Shur, Vladimir][NEICON Consortium] On: 24 June 2010 Access details: Access Details: [subscription number 781557264] Publisher Taylor & Francis Informa Ltd Registered in
More informationAuthor(s) Oka, Koichi, Sakamoto, M., Nakamu. 日本 AEM 学会誌 = Journal of the Japan S.
Kochi University of Technology Aca Noncontact Positioning Mechanism Title ffect and Electromagnets Author(s) Oka, Koichi, Sakamoto, M., Nakamu 日本 AEM 学会誌 = Journal of the Japan S Citation Applied Electromagnetics,
More informationStudy on Tire-attached Energy Harvester for Lowspeed Actual Vehicle Driving
Journal of Physics: Conference Series PAPER OPEN ACCESS Study on Tire-attached Energy Harvester for Lowspeed Actual Vehicle Driving To cite this article: Y Zhang et al 15 J. Phys.: Conf. Ser. 66 116 Recent
More informationExperimental Assessment of Unbalanced Magnetic Force according to Rotor Eccentricity in Permanent Magnet Machine
Journal of Magnetics 23(1), 68-73 (218) ISSN (Print) 1226-175 ISSN (Online) 2233-6656 https://doi.org/1.4283/jmag.218.23.1.68 Experimental Assessment of Unbalanced Magnetic Force according to Rotor Eccentricity
More informationLow Voltage Ionic Wind Generation using Piezoelectric Transformers
Proc. ESA Annual Meeting on Electrostatics 2015 1 Low Voltage Ionic Wind Generation using Piezoelectric Transformers Michael Johnson¹, Mark MacDonald 2, David B. Go 1 1 Dept. of Aerospace and Mechanical
More informationHowever, in matter, magnetic induction depends on magnetization M in the following way:
G1. Magnetic Hysteresis Cycle I. OBJECTIVE OF THE EXPERIMENT Magnetic materials are very important in technological fields, and have many different uses. The objective of the experiment is to study a few
More informationContinuous Visualization of Magnetic Domain Dynamics by Image Helmholtz Equation
The 0th International Symposium on Flow Visualization August 6-9, 0, Kyoto, Japan F097 Continuous Visualization of Magnetic Domain Dynamics by Image Helmholtz Equation Okubo Y. *, Endo H. *, Marinova I.
More informationElectric Power Systems Research
Electric Power Systems Research 78 (2008) 84 88 Contents lists available at ScienceDirect Electric Power Systems Research journal homepage: www.elsevier.com/locate/epsr 3D finite-element determination
More informationDepolarization of a piezoelectric film under an alternating current field
JOURNAL OF APPLIED PHYSICS 101, 054108 2007 Depolarization of a piezoelectric film under an alternating current field K. W. Kwok, a M. K. Cheung, H. L. W. Chan, and C. L. Choy Department of Applied Physics
More informationDevelopment of the Screw-driven Motors by Stacked Piezoelectric Actuators
Proceedings of the 4th IIAE International Conference on Industrial Application Engineering 2016 Development of the Screw-driven Motors by Stacked Piezoelectric Actuators Shine-Tzong Ho a,*, Hao-Wei Chen
More informationOptimization of two-dimensional permanent magnet arrays for diamagnetic levitation
Optimization of two-dimensional permanent magnet arrays for diamagnetic levitation Roland Moser, François Barrot, Jan Sandtner, Hannes Bleuler Laboratory of Robotic Systems Swiss Federal Institute of Technology,
More informationTime temperature profiles of multi-layer actuators
Sensors and Actuators A 115 (04) 140 145 Time temperature profiles of multi-layer actuators J. Pritchard, R. Ramesh, C.R. Bowen Department of Engineering and Applied Science, Materials Research Centre,
More informationLow Voltage Contact Electrostatic Discharge Phenomena
Conf Presentation - >SESSION.PAPER< - replace with your Session & Paper # (DOUBLE-CLICK HERE TO EDIT) < 1 Low Voltage Contact Electrostatic Discharge Phenomena Tetsuji Oda, Yuto Ono, Hiraku Miyasaka Abstract
More informationThermal deformation compensation of a composite beam using piezoelectric actuators
INSTITUTE OF PHYSICS PUBLISHING Smart Mater. Struct. 13 (24) 3 37 SMART MATERIALS AND STRUCTURES PII: S964-1726(4)7973-8 Thermal deformation compensation of a composite beam using piezoelectric actuators
More informationDESIGN OF A HIGH-EFFICIENCY MAGNETORHEOLOGICAL VALVE
DESIGN OF A HIGH-EFFICIENCY MAGNETORHEOLOGICAL VALVE JIN-HYEONG YOO AND NORMAN M. WERELEY Alfred Gessow Rotorcraft Center, Department of Aerospace Engineering University of Maryland, College Park, Maryland
More informationFriction and Elongation of Al Electrodes due to Micro-Sliding between the Inner Mo Electrode and the Al Electrodes in High-Power Devices
Materials Transactions, Vol. 43, No. 9 (2002) pp. 2326 to 2330 c 2002 The Japan Institute of Metals EXPRESS REGULAR ARTICLE Friction and Elongation of Al Electrodes due to Micro-Sliding between the Inner
More informationDae Won Ji and Sang-Joo Kim
Journal of the Korean Ceramic Society Vol. 55, No. 1, pp. 7~73, 2018. https://doi.org/10.4191/kcers.2018.55.1.03 Communication Construction and Application of Experimental Formula for Nonlinear Behavior
More information440. Simulation and implementation of a piezoelectric sensor for harmonic in-situ strain monitoring
440. Simulation and implementation of a piezoelectric sensor for harmonic in-situ strain monitoring 0. Incandela a, L. Goujon b, C. Barthod c University of Savoie, BP 80439 Annecy-le-Vieux CEDEX, France
More informationA small analog memory based on ferroelectric hysteresis
Pr Philips tech. Rev. 37,51-55,1977, No. 2/3 51 A small analog memory based on ferroelectric hysteresis A. Petersen, P. Schnabel, H. Schweppe and R. Wernicke Efforts have long been made to find means of
More informationPiezoelectric Multilayer Beam Bending Actuators
R.G. Bailas Piezoelectric Multilayer Beam Bending Actuators Static and Dynamic Behavior and Aspects of Sensor Integration With 143 Figures and 17 Tables Sprin ger List of Symbols XV Part I Focus of the
More informationPhysica C 468 (2008) Contents lists available at ScienceDirect. Physica C. journal homepage:
Physica C 468 (2008) 1036 1040 Contents lists available at ScienceDirect Physica C journal homepage: www.elsevier.com/locate/physc A V shaped superconducting levitation module for lift and guidance of
More information10 Measurement of Acceleration, Vibration and Shock Transducers
Chapter 10: Acceleration, Vibration and Shock Measurement Dr. Lufti Al-Sharif (Revision 1.0, 25/5/2008) 1. Introduction This chapter examines the measurement of acceleration, vibration and shock. It starts
More informationApplication of the Barkhausen effect probe with adjustable magnetic field direction for stress state determination in the P91 steel pipe
sciendo Journal of ELECTRICAL ENGINEERING, VOL 9 (), NO, 97 COMMUNICATIONS Application of the Barkhausen effect probe with adjustable magnetic field direction for stress state determination in the P9 steel
More information1990. Temperature dependence of soft-doped / hard-doped PZT material properties under large signal excitation and impact on the design choice
1990. Temperature dependence of soft-doped / hard-doped PZT material properties under large signal excitation and impact on the design choice Charles Mangeot Noliac A/S, Kvistgaard, Denmark E-mail: cm@noliac.com
More informationJournal of System Design and Dynamics
Zero Power Non-Contact Suspension System with Permanent Magnet Motion Feedback* Feng SUN** and Koichi OKA** ** Kochi University of Technology 185 Miyanokuchi, Tosayamada, Kami city, Kochi 782-8502, Japan
More informationMagnetic Responsiveness of Magnetic Circuit composed of Electrical Steel for Hall Thruster
Magnetic Responsiveness of Magnetic Circuit composed of Electrical Steel for Hall Thruster IEPC-2017-355 Presented at the 35th International Electric Propulsion Conference Georgia Institute of Technology
More informationPHENOMENA, THEORY AND APPLICATIONS OF NEAR-FIELD ACOUSTIC LEVITATION
PHENOMENA, THEORY AND APPLICATIONS OF NEAR-FIELD ACOUSTIC LEVITATION PACS REFERENCE: 43.25.Uv Ueha Sadayuki Precision and Intelligence Laboratory, Tokyo Institute of Technology 4259, Nagatsuta, Midori-ku,
More informationStudy on Mechanism of Magnetic Abrasive Finishing Process using Low - Frequency Alternating Magnetic Field Jinzhong Wu1, a, Yanhua Zou1, b
International Conference on Electromechanical Control Technology and Transportation (ICECTT 2015) Study on Mechanism of Magnetic Abrasive Finishing Process using Low - Frequency Alternating Magnetic Field
More informationFemtet What s New. Murata Software Co., Ltd. All Rights Reserved, Copyright c Murata Manufacturing Co., Ltd.
Femtet 2018.0 What s New Murata Software Co., Ltd. 1 Functionality Analysis Meshing General Functionality Modeling Results Display Item All Solvers Mechanical Stress/Thermal Analysis Mechanical Stress
More information