ICP Microphone – IEPE Microphone
ICP – IEPE microphones including factory calibration certificate and 24 months warranty.
10 volt measuring range, sound pressure level and microphone sensitivity.
A typical 1/2″ measuring microphone delivers a voltage of 50 mV at 1 Pascal.
1 Pascal corresponds to 94 dB sound pressure level. 94 dB is already very unpleasant for humans and is only tolerated in rare situations.
In a normal conversation, the sound pressure level is below 74 dB, i.e. 20 dB lower. 20 dB quieter is a factor of 10 quieter.
This means that at 74 dB, the microphone only delivers 5 mV.
Assuming that parts are acoustically tested in a soundproof measuring chamber during the end-of-line test, it can be assumed that the measuring microphone only delivers a few microvolts.
Therefore, the choice of the input measuring range of the measurement data acquisition is very important. Assuming that the measuring card has a measuring range of 10,000 mV and the measuring microphone is exposed to a sound pressure level of 74 dB, which delivers 5 mV, then the measuring range of 10 volts is far too coarse for this application.
Our solution for this application is the PnDL-100 with an input measuring range of 100 mV, which provides an acoustic measuring range of 13 to 97 dB(A).
MI19
IEPE Microphone
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Price: 180 €
Shipping price 28 €
Measurement Microphone Set
MI19 + Plug.n.DAQ Lite
- Price: 760 €
- Price: 980 €
MNP47
The MNP47 1/4″ measurement microphone opens the possibility of using a high-quality, pre-polarized ¼” pressure field measurement microphone capsule on measurement systems with IEPE supply.
Typical applications are measurements of high sound pressure levels e.g. in the defense industry or development of rocket engines or noise measurement in high voltage arc experiments.
The measuring microphone is connected to the measuring channels via a fixed SMB connector with SMB cables or usual BNC cables via a SMB-BNC adapter.
- 1/4″ microphone
- 4 mV/Pa
- Class 1 according to IEC 61094-4 WS3P
- Pressure field
- 10Hz to 20kHz
- 35 dBA to 164 dB
- Factory calibration certificate
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Price: 385 €
38 € Shipping Price
PCB 130A10
- 1/4″ microphone
- 30 mV/Pa
- Class 1 according to IEC 61672
- Free field
- 10Hz to 20kHz
- 26dBA to 135dB
- Factory calibration certificate
ICP is a registered trademark of PCB Piezotronics, Inc., DeltaTron is a registered trademark of Hottinger Brüel & Kjær A/S, ISOTRON is a registered trademark of ENDEVCO.
This document only describes the technical principles involved and inevitably mentions the registered trademarks of other manufacturers, which is not intended and will not harm the interests of trademark owners. The registered trademarks mentioned above belong to their respective owners.