Measurement microphone
Measurement microphone
  • Measurement microphone

CRY372 Measurement microphone

Pressure field type; pre-polarization; frequency response: 3.15 Hz - 20 kHz; sensitivity: 12.5 mV/Pa; dynamic range: 20 - 160 dB

CRY372 is a 1/2'' pressure-field type pre-polarization broadband measurement microphone. Thanks to the use of titanium alloys and precision stainless steel, as well as its compact construction and low-sensitivity design, it is not only excellent in corrosion resistance and robustness, but also extremely high stability and a very wide dynamic range. CRY372 Measurement Microphone is usually used with an ear stimulator coupled cavity, such as CRY318 Ear Stimulator according to IEC60318-1, CRY711 Ear Stimulator according to IEC60318-4 (formerly called "IEC711"). It can also be used to measure the sound pressure in the closed cavity and on the surface of an object. Besides, it can be used as a diffusion field microphone.

   

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  • Wide frequency response range
  • Excellent performance
  • Industry leader
Features
Standard-compliant

Standard-compliant

  • Compliance with IEC 61094-4:1995 Measurement microphones - Part 4: Specifications for working standard microphones

  • Compliance with GB/T 20441.4-2006 Measurement microphones - Part 4: Specifications for working standard microphones

Technical specification
Technical specification of CRY372

Sound field typePressure field type
Sensitivity (@ 250 Hz ± 2 dB)12.5 mV/Pa
Sensitivity (@ 250 Hz ± 2 dB)-38  dB re 1V/Pa
Frequency response (±2 dB)3.15Hz~20kHz 
Polarization voltage

0V(pre-polarization)

Typical capacitance13pF

Upper limit of dynamic range (re. 20 uPa)

≥160dB(distortion < 3%)
Lower limit of dynamic range (re. 20 uPa)≤20dB(A)
Range of operating temperature-30℃~80℃
Temperature coefficient (-10 ℃ to 50 °C)0.005dB/
Static pressure coefficient-0.01dB/kPa
Relative humidity range (without condensation)0~90%RH
Relative humidity coefficient<0.1dB(0 - 90% RH without condensation)
Pressure equalization methodPost-pressure equalization
IEC 61094-4 DesignationWS2P
Height (without protective grid)12.6mm
Diameter (including protective grid)13.2mm
Height (without protective grid)11.5mm
Diameter (without protective grid)12.7mm
Preamplifier with thread11.7mm-60UNS
Protective grid thread12.7mm-60UNS

Typical Frequency Response for CRY372

1571203876352708xZob.jpg

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