Real free-field calibration
As one of just a few laboratories in Germany, SPEKTRA is accredited for "real free-field calibration". The advantages of this type of calibration service are obvious. The free-field microphones largely used in practice are calibrated in precisely their intended acoustic environment. This eliminates the need for conversion calculations from pressure chamber to free-field frequency response and the potential associated errors.
Scope of services
- Real free-field calibration up to 20 kHz for measuring microphones, sound level meters and other acoustic measuring instruments
- A compact anechoic space can be set up in the laboratory
- Pressure chamber calibration from 0.1 Hz ... 16 kHz
- Accredited electrical calibration of sound level meters