NMI provides calibration services for time interval and frequency standards and instruments. Click here:
Before consigning an instrument for calibration always consult us to discuss your requirements. For further information contact calibration.coordinator@measurement.gov.au.
We also provide a time and frequency dissemination service. Click here for information on the operation of radio clocks in Australia.
We calibrate atomic frequency standards, oscillators and other radiofrequency references. Measurements in certain microwave frequency ranges up to about 40 GHz are also available. The accuracy of frequency calibrations is generally limited by the noise characteristics and stability of the device being calibrated.
Frequency stability characterisation of frequency references through determination of the Allan variance, over averaging times longer than 10 s, may also be available at specified frequencies.
Instruments submitted for test should be fitted with coaxial or waveguide connectors and all output signals should be buffered to prevent loading errors. Setting of frequency references to a nominal value will only be carried out where the instrument has conveniently accessible adjustments. An owner's manual should be supplied with the instrument but, if this is not available, information on power requirements and normal modes of use should be provided.
We calibrate laser speed measuring instruments, LIDAR calibrators and piezo sensor speed measuring instruments. In special circumstances we calibrate tachometers, stroboscopes and stop watches.
We are able to provide measurements of optical frequencies.