ISA-37.10-1982 - (R1995) Specifications and Tests for Piezoelectric Pressure and Sound-Pressure Transducers (Downloadable)

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Establishes uniform specifications for describing design and performance characteristics, acceptance and qualification test methods, and calibration techniques, and procedures for presenting test data for piezoelectric (including ferroelectric) pressure and sound-pressure transducers.

Scope:
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 diffuse-field 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:

• Piezoelectric pressure transducers for transient pressure measurements
  
• Piezoelectric pressure transducers that, in conjunction with associated electronic equipment, have quasi-dc response to gage pressures
  
• Piezoelectric transducers for sound pressure levels in excess of 100 dB overall re 20 µ Pa associated with fluid-borne noise
  

• 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
  

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