In-house calibration

20 July 2017

Following the setting up of an acoustic calibration laboratory last year, Bedford-based Svantek UK – part of the AcSoft Group – is now offering in-house calibration of its range of high performance noise and vibration instrumentation for occupational health and environmental monitoring applications.

The company has replicated the acoustics calibration system used at Svantek’s facility in Poland meaning it can now perform a full factory calibration on all noise and vibration analysers and meters. As a result, new instruments shipped to customers have a fresh calibration certificate every time.

Svantek UK has added a vibration calibration fixture using a Data Physics 16kg shaker together with Listen’s SoundCheck software and a Dytran reference accelerometer to give a wider range of capabilities. This enables it to calibrate vibration meters according to ISO 8041 and tri axial or single axis accelerometers.

Vibration analysers are calibrated by applying electrical signals to test the frequency response, linearity, overload/range limits, etc. The vibration meter is tested using mechanical excitation either with Svantek’s working standard reference accelerometer or with the customer's sensor.

The filter characteristics of the meters are also tested in accordance with the applicable standard either electrically or vibrationally using Svantek UK’s reference sensor.

For accelerometers, the vibration test system allows Svantek UK to measure both sensitivity at the reference frequency and the frequency response of the sensor. This is completed by performing the back to back calibration method.