Works from infrasound to ultrasound with high sensitivity and low noise. The RG-50 microphone is an affordable choice for acoustic measurements. It can be used with any instrument that has an IEPE constant current supply. It meets the Class 1 WS3F IEC 61094-5 specification.
The RG-50 IEPE microphone is perfect for engineers and technicians in many fields, including industrial acoustics, automotive testing, and aerospace. It’s perfect for capturing frequencies from 5 Hz to 30 kHz.
We believe that the RG-50 measurement microphone, with its high sensitivity of 50 mV/Pa, is the only 1/4″ ultrasonic microphone currently available on the market.
Ultrasound Microphone – Infrasound Microphone
Technical data: | |
|---|---|
Transducer type | Electrete pressure transducer |
Class 1 | WS3F according to IEC 61094-5 |
Polar pattern | Omni |
Frequency range | 5 Hz – 30 kHz (meets Type 1 free field limits) |
Sensitivity @ 1 kHz | 50 mV/Pa ± 0.5 dB |
Max. SPL for 1% THD at 1 kHz | 130 dB Peak |
Inherent noise | 26 dB(A) |
Output impedance | <50 Ohm |
Current consumption | 2-6 mA |
Power supply | 18 V DC to 30 V DC |
Bias: | 12.5 Volt |
Temperature range, operation | -20°C to +80°C |
Heat resistant | up to 110 °C |
Diameter | 7 mm ± 0.05 mm |
Length | 93 mm |
Weight | 23 g |
Connector | BNC (fem.) |
Applications:
- Ultrasound
- Product noise
- Ambient noise
- Acoustic camera
- Sound power
RG-50SW Splash Proof IP55
The RG-50SW microphone is designed with splash water protection so that it can be used for measurement campaigns in wet or humid weather.
A water-repellent sealing of the membrane at the sound inlet, prevents the damage of the electret capsule by water.
The IEPE microphones with splash water protection, also MI21 and MI17SW, have proven themselves, among others, at brake manufacturers, who mount the microphone in the wheel housing to record disturbing brake noises.
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Price: 588 $
38 $ Shipping Price
RG-50 Frequency Response Up to 30 kHz
Comparison of ultrasonic microphones
In the following we present a comparative measurement of the 1/4-inch ultrasonic microphones RG-50 and MM310.
The measurement is made with a 2-channel high-performance RME ADI-2/4 PRO SE transducer and the two-channel IEPE power supply type MC102A.
The NVH FFT analysis software controls the RME high-performance transducer via the ASIO interface with a sampling rate of 384 kHz and is calibrated with a microphone calibrator before the measurement.
The compressed air from a compressor is used as the ultrasonic sound source.
