GRAS 40EN 1" Low Frequency Low Noise Microphone
This microphone is a 1" pressure free field microphone for low frequency and low noise acoustic/coupler and boundary calibration and measurements
We're using this microphone for measurements in low frequency sound fields like noise investigations.
Microphone specifications (full specs here):
- Open Circuit sensitivity at 250Hz 50mV / Pa
- Frequency response 2.6Hz to 8kHz +- 2dB
- Polarization 200V
- Noisefloor 9.6dB(A)
- Upper limit 146dB at 3% distortion
Individual calibrationchart for [
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Work allways in progress - page will be updated !
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