Classification of services in Acoustics, Ultrasound and Vibration

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Classification of services in Acoustics, Ultrasound and Vibration Last update: December 2017 1 Metrology Area: Acoustics, Ultrasound and Vibration Branch: Sound in Air 1. Measurement microphones 1.1 Pressure sensitivity level 1.1.1. Modulus: frequency 1.1.2. Phase: frequency 1.2 Free-field sensitivity level 1.2.1. Modulus: frequency 1.2.2. Phase: frequency 1.2.3. Directivity: frequency 1.3 Diffuse field sensitivity level 1.3.1. Modulus: frequency 1.3.2. Phase: frequency 1.4 Electrostatic actuator normalized response 1.4.1 Modulus: microphone type, frequency 2. Sound calibrators 2.1 Single frequency 2.1.1. Sound pressure level: microphone type 2.2 Multi-frequency 2.2.1. Sound pressure level: microphone type, frequency 3. Sound measuring instruments 3.1 Response 3.1.1. Sound pressure response level: frequency 3.1.2. Free-field response level: frequency 3.1.3. Diffuse field response level: frequency 3.1.4. Sound intensity response level: frequency 4. Ear simulators 4.1 Reference couplers or artificial ears 4.1.1. System response level: frequency 4.1.2. Acoustic impedance: frequency 4.2 Mechanical couplers 4.2.1. Force response level: frequency 4.2.2. Mechanical impedance: frequency 4.3 Impedance head force transducer 4.3.1. Modulus of charge sensitivity: frequency 4.3.2. Phase shift of charge sensitivity: frequency 4.4 Impedance head force measuring chain 4.4.1. Modulus of voltage sensitivity: frequency 4.4.2. Phase shift of voltage sensitivity: frequency 1 For each service the measurand is indicated in Roman characters, and the parameter(s) in italic characters. 1/5

5. Reference sound sources 5.1 Output 5.1.1. Sound power level: frequency 5.1.2. Directivity: frequency 6. Audiometers 6.1 Response 6.1.1. Air-conduction response level: frequency 6.1.2. Bone-conduction response level: frequency 7. Reserved for future use 8. Reserved for future use 9. Reserved for future use 10. Reserved for future use Branch: Sound in Water 11. Hydrophones (medical ultrasonic) 11.1 Free-field sensitivity 11.1.1. Modulus: frequency 11.1.2. Phase: frequency 11.2 Pressure sensitivity 11.2.1. Modulus: frequency 11.2.2. Phase: frequency 12. Hydrophones (underwater acoustics) 12.1 Free-field sensitivity 12.1.1. Modulus: frequency 12.1.2. Phase: frequency 12.2 Pressure sensitivity 12.2.1. Modulus: frequency 12.2.2. Phase: frequency 13. Ultrasound transducer with generator 13.1 Output 13.1.1. Ultrasonic power: frequency 13.1.2. Directivity: frequency 13.1.3. Ultrasonic pressure: frequency 14. Ultrasound transducer 14.1 Output 14.1.1. Electroacoustic radiation conductance: frequency, r.m.s. voltage 14.1.2. Directivity: frequency 14.1.3. Ultrasonic power: frequency, r.m.s. voltage 15. Reserved for future use 16. Reserved for future use 17. Reserved for future use 18. Reserved for future use 19. Reserved for future use 20. Reserved for future use 2/5

Branch: Vibration NOTE: For this branch the CMCs are expressed in terms of the physical quantity of acceleration or angular acceleration. For sinusoidal vibration (e.g. primary vibration calibration in accordance with ISO 16063-11) the entries may also represent the calibration and measurement capabilities for derivatives such as velocity, displacement, angular velocity and rotation angle. 21. Linear vibration 21.1 Acceleration measuring instrument 21.1.1. Frequency response 21.1.1.1. Modulus: frequency 21.1.1.2. Phase: frequency 21.1.2. Shock response 21.1.2.1. Modulus: shock duration 21.2 Acceleration calibrator 21.2.1. Acceleration output 21.2.1.1. Modulus: frequency 21.2.2. Shock output 21.2.2.1. Modulus: shock duration 21.3 Acceleration measuring chain / accelerometer 21.3.1. Charge sensitivity 21.3.1.1. Modulus: frequency 21.3.1.2. Phase: frequency 21.3.2. Shock charge sensitivity 21.3.2.1. Modulus: peak value, shock duration 21.3.3. Voltage sensitivity 21.3.3.1. Modulus: frequency 21.3.3.2. Phase: frequency 21.3.4. Shock voltage sensitivity 21.3.4.1. Modulus: peak value, shock duration 21.3.5. Current sensitivity 21.3.5.1. Modulus: frequency 21.3.5.2. Phase: frequency 21.3.6. Shock current sensitivity 21.3.6.1. Modulus: peak value, shock duration 22. Angular vibration 22.1 Angular acceleration measuring instrument 22.1.1. Angular acceleration response 22.1.1.1. Modulus: frequency 22.1.2. Shock response 22.1.2.1. Modulus: shock duration 22.2 Angular acceleration calibrator 22.2.1. Angular acceleration output 22.2.1.1. Modulus: frequency 22.2.2. Angular shock output 22.2.2.1. Modulus: shock duration 22.3 Angular acceleration measuring chain / accelerometer 22.3.1. Charge sensitivity 3/5

22.3.1.1. Modulus: frequency 22.3.1.2. Phase: frequency 22.3.2. Shock charge sensitivity 22.3.2.1. Modulus: peak value, shock duration 22.3.3. Voltage sensitivity 22.3.3.1. Modulus: frequency 22.3.3.2. Phase: frequency 22.3.4. Shock voltage sensitivity 21.3.4.1. Modulus: peak value, shock duration 22.3.5. Current sensitivity 22.3.5.1. Modulus: frequency 22.3.5.2. Phase: frequency 22.3.6. Shock current sensitivity 22.3.6.1. Modulus: peak value, shock duration 23. Dynamic Force 23.1 Force measuring instrument 23.1.1. Frequency response 23.1.1.1. Modulus: frequency 23.1.1.2. Phase: frequency 23.1.2. Shock response 23.1.2.1. Modulus: shock duration 23.2 Force calibrator 23.2.1. Force output 23.2.1.1. Modulus: frequency 23.2.2. Shock force output 23.2.2.1. Modulus: shock duration 23.3 Force measuring chain / force transducer 23.3.1. Charge sensitivity 23.3. 1.1. Modulus: frequency 23.3. 1.2. Phase: frequency 23.3.2. Shock charge sensitivity 23.3.2.1. Modulus: peak value, shock duration 23.3.3. Voltage sensitivity 23.3.3.1. Modulus: frequency 23.3.3.2. Phase: frequency 23.3.4. Shock voltage sensitivity 23.3.4.1. Modulus: peak value, shock duration 23.3.5. Current sensitivity 23.3.5.1. Modulus: frequency 23.3.5.2. Phase: frequency 23.3.6. Shock Current sensitivity 23.1.6.1. Modulus: peak value, shock duration 24. Reserved for future use 25. Reserved for future use 26. Reserved for future use 27. Reserved for future use 28. Reserved for future use 29. Reserved for future use 4/5

30. AUV auxiliary instruments and/or devices 30.1 Vibration signal conditioner 30.1.1. Charge sensitivity: 30.1.1.1. Modulus: frequency 30.1.1.2. Phase: frequency 30.1.2. Voltage sensitivity: 30.1.2.1. Modulus: frequency 30.1.2.2. Phase: frequency 30.1.3. Current Sensitivity: 30.1.3.1. Modulus: frequency 30.1.3.2. Phase: frequency 5/5

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