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Calibration Service - Acoustics

Traceable quality for acoustic measuring equipment

Trust a competent and DAkkS-accredited partner when it comes to the calibration of your acoustic measuring instruments. We calibrate your measuring microphones, sound level meters, sound level calibrators, pistonphones as well as a wide range of acoustic devices quickly and reliably.

In order to perform reliable measurements, your measuring equipment must be traced back or calibrated at regular intervals. This way you can ensure that you make reproducible measurements and improve their quality.

  • DAkkS-accredited
  • Calibration services at the highest level
  • Excellent, minimal measurement uncertainty values
  • Traceable for reproducible measurements
  • Standard processing time in the laboratory of 5-7 working days only
  • Optional: express calibration within 48 h

Our accreditation certificate

Calibration service of a sound level meter at Spektra

Sound level meters/
measurement chains

Calibration in accordance with IEC 61672-3:2013

  • Free-field calibration
    125 Hz…20 kHz (sound pressure level 75 dB...94 dB)
  • Pressure calibration (in an electroacoustic coupler)
    31.5 Hz…16 kHz (64 dB…114 dB)
  • Pressure calibration (two-point with pistonphone and calibrator)
    250 Hz (124 dB) and 1 kHz (94 dB or 114 dB)
  • Pressure chamber, low frequency (only factory calibration possible)
    0.1 Hz…31.5 Hz (124 dB)

Full electrical calibration

 

Calibration of measuring microphones at Spektra

Measuring microphones
(1/4", 1/2", 1")

Calibration in accordance with IEC 61094-8-2012, IEC 60942:2004 or
IEC 61094-5:2016

  • Free-field calibration
    125 Hz...20 kHz (74 dB…94 dB)
  • Pressure calibration (in an electroacoustic coupler)
    31.5 Hz…16 kHz (64 dB…124 dB)
  • Pressure calibration (two-point with pistonphone)
    250 Hz (124 dB) and 1 kHz (94 dB or 124 dB)
  • Pressure chamber, low frequency (only factory calibration possible)
    0.1 Hz…31.5 Hz (124 dB)

 

Sound calibrators, pistonphones and multifunction calibrators

Sound calibrators, pistonphones
and multi-tone calibrators

  • Pressure calibration (in an electroacoustic coupler)
    31.5 Hz…16 kHz (60 dB…130 dB)
  • Pressure calibration (two-point with pistonphone)
    250 Hz (124 dB) and 1 kHz (94 dB or 114 dB)

 

Calibration service acoustics dosimeter

Noise dosimeters

  • Pressure calibration (in an electroacoustic coupler)
    31.5 Hz…16 kHz (64 dB…114 dB)
  • Pressure calibration (two-point with pistonphone)
    250 Hz (124 dB) and 1 kHz (94 dB or 114 dB)

 

Calibration service acoustics outdoor microphones

Outdoor microphones

  • Free-field calibration
    125 Hz...20 kHz (74 dB…94 dB)
  • Pressure calibration (in an electroacoustic coupler)
    31.5 Hz…16 kHz (64 dB…124 dB)
  • Pressure calibration (two-point with pistonphone and calibrator)
    250 Hz (124 dB) and 1 kHz (94 dB or 124 dB)

 

Calibration service acoustics surface microphones

Surface microphones

  • Pressure calibration (in an electroacoustic coupler)
    31.5 Hz…16 kHz (64 dB…124 dB)

  • Pressure calibration (two-point with pistonphone and calibrator)
    250 Hz (124 dB) and 1 kHz (94 dB or 124 dB)

 

Calibration service acoustics of sound intensity sensor

Sound intensity probes

  • Calibration of the relative free field frequency response of each microphone: 125 Hz...20 kHz
  • Including two-point pressure chamber calibration: 250 Hz (124 dB) and 1 kHz (94 dB or 114 dB)
  • Calibration of the phase frequency response in the pressure chamber to determine the residual intensity of the probe
  • Conformity testing of the frequency response and the residual intensity against the limits defined in the standard DIN EN 61043:1994

By means of a two-channel technology, sound intensity probes enable, in addition to sound pressure level measurement, the recording of the sound pressure gradient and thus the calculation of the sound intensity.

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SPEKTRA Sales Team

References

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Six simple steps to your certificate

6 simple steps of SPEKTRAs service process

Key Features

Frequency range

  • Free field: 125 Hz...20 kHz
  • Pressure chamber: 31.5 Hz...16 kHz (DAkkS-accredited, from 0.1 Hz as factory calibration)

Amplitude range

  • Free field: 74 dB...94 dB
  • Pressure chamber: 64 dB...124 dB

Calibration in accordance with

  • IEC 61672-3:2013
  • IEC 61094-8:2012
  • IEC 60942:2004
  • IEC 61094-5:2016
Mascot_Question

 

Why is calibration
even required?

Here you will find an interesting overview with definitions,
further information and more about the benefits of our calibration services.