CRY312 Measurement microphone
Pressure field type; frequency range: 4 Hz - 8 kHz; sensitivity: 50 mV/Pa; dynamic range: 10-146 dB
CRY312 is a 1'' pressure-field 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 allows it to have the upper limit of 8 kHz within its frequency range and a very high sensitivity, which makes it suitable for certain special test applications.
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 specifications of CRY312 |
|---|
| Sound field type | Pressure field type |
| Sensitivity (@ 250 Hz ± 2 dB) | 50mV/Pa |
| Sensitivity (@ 250 Hz ± 2 dB) | -26dB re 1V/Pa |
| Frequency response (±2 dB) | 4Hz ～8kHz |
| Polarization voltage | 0V(pre-polarization) |
| Typical capacitance | 55pF |
| Upper limit of dynamic range (re 20 uPa) | ≥146dB(distortion < 3%) |
| Lower limit of dynamic range (re 20uPa) | ≤10dB(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 | Post-pressure equalization |
| IEC 61094-4 Designation | WS1F |
| Height (without protective grid) | 19mm |
| Diameter (including protective grid) | 23.77mm |
| Height (without protective grid) | 17mm |
| Diameter (without protective grid) | 23.77mm |
| Preamplifier with thread | 23.11mm-60UNS |
| Protective grid thread | 23.11mm-60UNS |
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