Measurement microphone
Measurement microphone
  • Measurement microphone

CRY331 Measurement microphone

Free field type; pre-polarization; frequency range: 3.15 Hz - 16 kHz; sensitivity: 40 mV/Pa; linear range: 16 - 140 dB

CRY331 is a 1/2'' free-field type pre-polarization measurement microphone. The design of titanium alloy and precision stainless steel makes it not only excellent in corrosion resistance and robustness, but also extremely high stability, so that it is ideal for outdoor and indoor applications. During the test, due to the presence of the microphone, the sound field will be affected and the high-frequency sound field at its position will be changed. Based on this characteristic, the HF frequency response of the measurement microphone is adjusted to compensate for the error caused by the high-frequency sound pressure in the sound field. CRY331 is a cost-effective measurement microphone.

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  • Cost-effective
  • Industry leader
  • Titanium film process
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 CRY331

Sound field typeFree field type
Sensitivity (@ 250 Hz ± 2 dB)40 mV/Pa
Sensitivity (@ 250 Hz ± 2 dB)-28  dB re 1V/Pa
Frequency response (±2 dB)3.15Hz~16kHz 
Polarization voltage

0V(pre-polarization)

Typical capacitance18pF

Upper limit of dynamic range (re. 20 uPa)

≥140dB(distortion < 3%)
Lower limit of dynamic range (re. 20 uPa)≤16dB(A)
Range of operating temperature-20℃~60℃
Temperature coefficient (-10 ℃ to 50 °C)0.012dB/℃
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 DesignationWS2F
Height (without protective grid)16.3mm
Diameter (including protective grid)13.2mm
Height (without protective grid)15.2mm
Diameter (without protective grid)12.7mm
Preamplifier with thread11.7mm-60UNS
Protective grid thread12.7mm-60UNS

Typical Frequency Response for CRY331 (0° angle of incidence)

15711304922078618HaQ.jpg

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After-sales services
  • 20 years industry experience

  • 24 hours Technical Support

  • Professional engineers on line response

  • 2 hours response
    Solution within 2 work days

  • All life Costs Maintenance

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