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40PH-10 CCP Free-field Array Microphone
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40PH-10 CCP Free-field Array Microphone
The GRAS 40PH-10 Array Microphone is a low-cost microphone for general purpose measurements in arrays and matrices.
Concurrent spatial and transient measurements
Array microphones are designed to be mounted on large or small arrays. Such systems are typically used for measuring and locating noise sources, and here the phase match is important to get good accuracy in the measurements. An important characteristic of array microphones is that the microphones are phase-matched.
Key Specifications
| Polarization/Connection | 0 V / CCP |
| Frequency range (±1.5 dB) | 50 Hz to 5 kHz |
| Frequency range (±2 dB) | 10 Hz to 20 kHz |
| Dynamic range lower limit (microphone thermal noise) | < 33 dB(A) |
| Dynamic range upper limit | 135 dB |
| Set sensitivity @ 250 Hz (±2 dB) | 50 mV/Pa |
| Power supply (Constant Current Power) | 2 to 20 mA |
| Microphone venting | Front |
| Output impedance | < 50 Ω |
| Temperature range, operation | -10 to 50 °C / -50 to 122 °F |
| Temperature range, storage | -20 to 60 °C / -4 to 140 °F |
| Influence of axial vibration @1 m/s² | 55 dB re 20 µPa |
| TEDS (IEEE 1451.4) | 27 v. 1.0 |
| Connector type | SMB |
| Weight | 5.50 g / 0.20 oz |
Specifications from the official GRAS product sheet. Please refer to the attached datasheet for full details.
