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NFM – Near Field Microphone

NFM – Near Field Microphone

Discom’s NFM is specifically designed as a replacement for structure-borne sensors when contactless vibration measurement is required. The NFM is suitable for rounded surfaces and similar positions where a typical Discom BKS-type sensor cannot be used effectively. It has been tailored for a frequency range from 600 Hz to 15 KHz, making it an excellent choice for acoustical quality control and defect detection. The best  best background noise attenuation is achieved between 600 Hz and 3 KHz, ensuring accurate and reliable measurements in various environments.

Use scenarios

NFM works for rounded surfaces and similar positions which do not allow structure borne noise sensors such as Discom BKS-type

Specifications

  • Standard M27 outer and M8 inner thread mounting
  • Frequency range: 600 Hz to 15 KHz. Maximum attenuation between 600 and 3000 Hz
  • Positioning: distance from surface: 5 – 10 mm
  • Cable connectors radial or axial (2 versions available)
  • NFM occupies two A/D input channels in Discom DAQ-System

Downloads

Product Sheet Sensor Sets

Product Sheet Sensor Sets

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Hottinger Brüel & Kjær GmbH

Maschmühlenweg 81
37081 Göttingen, Germany

[email protected]
Phone: +49 551 54833-0

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