When it comes to calibrating your acoustic measuring instruments, trust a competent partner accredited by DAkkS. We calibrate your measuring microphones, sound level meters, sound level calibrators, pistonphones as well as a wide variety of other acoustic devices quickly and reliably.
To ensure reliable measurements, your measuring equipment must be traceable or calibrated at regular intervals. This allows you to ensure that you perform reproducible measurements and improve their quality.
Detailed information available for download:
Sound level meters/measurement chains
Calibration in accordance with IEC 61672-3:2013 and DIN 45657:2014
- Free-field calibration
125 Hz…20 kHz (sound pressure level 75 dB…94 dB) - Pressure calibration (in electroacoustic coupler)
31.5 Hz…16 kHz (64 dB…114 dB) - Pressure calibration (two-point with pistonphone and calibrator)
250 Hz (94 dB, 114 dB, or 124 dB) and 1 kHz (94 dB or 114 dB) - Low-frequency pressure chamber (factory calibration only)
0.1 Hz…31.5 Hz (124 dB) - Full electrical calibration
Measuring microphones (¼", ½", 1")
Calibration according to 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 electro acoustic coupler
31.5 Hz…16 kHz (74 dB…124 dB)
¼ inch with max. frequency range up to 2 kHz - Two-point pressure calibration with pistonphone and calibrator
250 Hz (94 dB, 114 dB, or 124 dB) and 1 kHz (94 dB or 114 dB) - Pressure chamber, low frequency: factory calibration only
0.1 Hz…31.5 Hz (124 dB)
Sound intensity probes
- Calibration of the relative free-field frequency response of each microphone: 125 Hz…20 kHz
- Including pressure chamber calibration at two operating points: 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 residual intensity against limit values from the DIN EN 61043:1994 standard
Thanks to the two-microphone technique, sound intensity probes enable not only the measurement of sound pressure but also the detection of the sound pressure gradient and thus the calculation of sound intensity.
