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Here you find measurement microphones for measurement technology in education, industry, development and research

ROGA ¼" Microphone

The ¼” electret microphones MI15, MI17, MI19, RG-50 and MI21 are free-field types with integrated electronics. 

All types can be supplied with close tolerances (±0.5dB) with transfer factors between 1.4 mV/Pa and 100 mV/Pa. 

Power is supplied by a constant current source IEPE (standard) with usually 4mA. 

Coaxial cables are used as feed lines. 

As a standard the microphones are equipped with BNC connectors and are also available with TNC connector.

The microphones should not be exposed to aggressive environmental conditions.

MI19 ¼" IEPE DAQ Microphone

Class 1 according to IEC 61672
electret free field measurement microphone

IEPE DAQ microphone for applications in standard industrial environments suitable for all noise measurements above 27 dB(A) to 130 dB.

The MI19 ICP measurement microphone offers a cost-effective solution for acoustic measurements. 

It can be used in combination with any instrument that has an IEPE constant current power supply. 

The frequency response also corresponds to class 1 specification DIN/IEC 651.

  • Sensitivity 50mV/Pa
  • IEPE supply 2-8mA
  • Polar Pattern: Omnidirectional
  • Frequency Response: 20Hz – 20kHz
  • Class 1 according to DIN EN 60 651
  • Acoustic noise floor 27 dB(A) 
  • Measuring range up to 130 dB SPL Peak (5% Dist.)
  • Temperature range -10 to +80 °C
  • Heat resistant up to 130 °C

RG-50HL
High SPL IEPE Microphone

1/4" measurement microphone with
constant pressure frequency response

The static air pressure is compensated by means of a capillary to the preamplifier (back-ventilated) or by means of a side capillary (side-ventilated). The membrane is protected against mechanical damage by a protective grid.
  • WS3F according to IEC 61094-4
  • IEPE – BNC
  • 5Hz to 20kHz
  • 60dB(A) to 170dBPeak
  • pre-polarized
Application:
  • Airbag Bang
  • Explosion analysis
  • Explosion detection
  • Shooting noise
  • Gunshot sound

In this video, we are introducing a ROGA MI17 & MI19 application for the WaveHitMAX by gfai tech GmbH, which allows you to automate your end of line test.

Reproducible automated excitation of specimens with adjustable forces and repetitions. Trigger hits via software, manually or TTL signal.

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