This IEPE measurement microphone USB interface was specially developed for high-quality condenser measurement microphones for measuring particularly low sound levels.
The inherent noise of the PnDL-100 is 13 dB(A) and the inherent noise of WS2F class 1 measurement microphones with 50 mV/Pa sensitivity is 15 dB(a) to 17 dB(A).
The PnDL-100 is ideal for noise measurements from 13 dB(A) to 97 dB(A).
Supported operating systems: Android – Linux – Windows – macOS
PnDL-100
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Price: 377 €
+ 38 € Shipping Price
Analog Input | 2ch single ended BNC, IEPE |
|---|---|
Inherent noise | 13 dB(A) with 50 mV/Pa mic sensitivity |
IEPE power fixed | 21 Volt / 4mA |
Fixed input range | 0.1 V Volt Peak |
Bandwidth | 1 Hz to 24 kHz (-3dB) 10 Hz to 22 kHz (-0.5dB) |
Sampling Frequency | 48 kHz, – 44.1 kHz – 32 kHz – 22.05 kHz 16 kHz – 11.025 kHz |
Absolute accuracy | 1 % typical |
Gain accuracy | 0.2 % or better |
Distortion | < 0.05% |
Dynamic range | > 100 dB（FFT-based) |
Pass band ripple | 0.05 dB |
Powered by USB Port | Power consumption < 1W |
Temperature range | +/-0 to +50 °C |
Dimensions | 57 (w) x 104 (d) x 28 (h) mm |
Weight | 110 g |
Supported operating systems: Android – Linux – Windows – macOS
Plug.n.DAQ Lite Software Compatibility: ARTA – Audacity – DASYLab – imc WAVE – LabVIEW – ME’Scope – NVH-IMP – NVH-FFT – Visual Analyzer – WavePad Sound Editor – Sigview – Soundcard Oscilloscope – SO Analyzer – SpectraPLUS-RT – SpectraPLUS-SC – Multi-Instrument
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).