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Noise & sound measurement – electroacoustics

Microphones

Products and components for microphones.

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Microphones models

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Technology overview

Products and components for microphones.

Quality and certification

Certified quality management, calibration certificates and calibration services at manufacturers’ facilities.

  • Every instrument is supplied with a calibration certificate.
  • Advanced calibration services at manufacturers’ facilities abroad, coordinated and supported by Elina.
  • The quality management system is certified to ISO 9001:2015. Certificate I31417 is valid until 7 April 2028.
Download the certificate PDF
9001:2015

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Frequently asked questions

Answers to the most common questions about our products and services

Define frequency range and sound-level range first. Then match the microphone to the acoustic field and measurement arrangement.

Free-field microphones address sound mainly from one direction; diffuse-field microphones address many directions; pressure microphones suit appropriate enclosed cavities or surface arrangements. Select for the measurement conditions.

Polarization creates the cartridge electric field and can be internal or external. Preamplifier power is a separate requirement, supplied through the appropriate interface, such as CCLD or a dedicated microphone input.

Array processing uses phase differences between channels, not amplitude alone. For example, Type 4958 provides phase matching and transfer-function data in TEDS for supporting systems.

Yes. Wind and rain protection do not replace calibration. A system such as Type 4952 supports acoustic calibration and CIC remote verification of the microphone, preamplifier and cabling.

The upper dynamic-range limit also depends on permitted distortion and the electrical chain. For example, Type 4958 documents 140 dB at THD below 3%, under the specified current-source conditions. Also check that the preamplifier and acquisition input do not clip earlier.

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