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ISA 37.10 82nd Edition, January 1, 1982
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Specifications and Tests for Piezoelectric Pressure and Sound Pressure Transducers
Includes all amendments and changes through Reaffirmation Notice , September 29, 1995
Page Count:36
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This standard covers piezoelectric (including ferro-electric) pressure transducers and piezoelectric sound pressure transducers. Pressure and sound-pressure types could be the same instrument differing only in the method of calibration and manner of specifying performance. With the exception of certain impedance and charge measurements, this standard is also applicable to piezoelectric transducers with built-in amplifiers.

Sound pressure transducers sense and measure the pressure oscillations within an elastic fluid medium experiencing stress-strain waves. When installed near the sound source or in the wall of a test object, the transducer behavior relates to its pressure response. When installed in a sound field, considerable interaction occurs at higher frequencies during the measuring transaction, changing the quantity being measured and relating transducer behavior to its free-field or diffusefield response. Both aspects of transducer behavior are covered in this standard.

Included among the specific types of piezoelectric pressure transducers to which this standard is applicable are the following:

a) Piezoelectric pressure transducers for transient pressure measurements

b) Piezoelectric pressure transducers that, in conjunction with associated electronic equipment, have quasi-dc response to gage pressures

c) Piezoelectric transducers for sound pressure levels in excess of 100 dB overall re 20 ╬╝ Pa associated with fluid-borne noise

Terminology used in this document is defined in ISA-S37.1, except that additional definitions particularly applicable to piezoelectric pressure and piezoelectric sound-pressure transducers are defined in 4.3 of this document.


This Standard establishes the following for piezoelectric pressure and piezoelectric soundpressure transducers.

Uniform minimum general specifications for describing design and performance characteristics 

Selected uniform acceptance and qualification test methods, including calibration techniques

Uniform procedures for the presentation of transducer test data

A drawing symbol for use on measurement system electrical schematics (See Note in Section 3.)