CALIBRATION OF ACCELEROMETERS USING PARAMETER IDENTIFICATION – TARGETING A VERSATILE NEW STANDARD

Thomas Bruns, Alfred Link, Franko Schmähling, Holger Nicklich, Clemens Elster

Abstract

The currently established documentary standards for primary accelerometer calibration provide a characterisation of the device under test which is not well suited for the application to transient excitations. The model based parameter identification (MBPI) introduced over the last years may provide better means of characterisation for such types of applications. The method was recently validated with extensive measurement series in a joint research project between PTB and the company "SPEKTRA Schwingungstechnik und Akustik GmbH Dresden" and is now considered by the authors to be ready for practical use and worthwhile to be standardized on an ISO level.<br />This contribution will shortly re-visit the methodology of MBPI, report on the validation process and finally describe the current effort to implement a new ISO documentary standard on the topic.

Keywords

accelerometer, calibration, identification

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IMEKO-WC-2009-TC22-118.pdf

DOI

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IMEKO TC

TC22 - Vibration Measurement

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