Measurement microphone-CRYSOUND

CRY351 is a 1/4'' 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. The unique design and smaller size allow it to have the upper limit of up to 40kHz within its frequency range and a very high sensitivity, which makes it suitable for certain special test applications. CRY351 is a kind of high-performance measurement microphone.

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High-frequency and high sound pressure
Excellent performance
Excellent stability

Features

Standard-compliant

Compliance with IEC61094-4: 1995 Measurement microphones - Part 4: Specifications for working standard microphones
Compliance with GBT20441.4-2006 Measurement microphones - Part 4: Specifications for working standard microphones

Technical specification

Technical specification of CRY351

Sound field type	Free field type
Sensitivity (@ 250 Hz ± 2 dB)	15.8 mV/Pa
Sensitivity (@ 250 Hz ± 2 dB)	- 36 dB re 1 V/Pa
Frequency response (±2 dB)	4Hz~40kHz
Polarization voltage	0V
Typical capacitance	7 pF (250 Hz)
Upper limit of dynamic range (re. 20 uPa)	≥140dB(distortion < 3%)
Lower limit of dynamic range (re. 20 uPa)	≤20dB(A)
Range of operating temperature	-20℃~60℃
Temperature coefficient (-10 ℃ to 50 °C)	0.015dB/℃
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 method	Average side pressure
IEC 61094-4 Designation	WS3F
Height (without protective grid)	10.5mm
Diameter (including protective grid)	7mm
Height (without protective grid)	9mm
Diameter (without protective grid)	6.35mm
Preamplifier with thread	5.7mm-60UNS