INVESTIGATION OF INTERFEROMETRIC METHODS FOR DYNAMIC FORCE MEASUREMENT

Li Zhang, Rolf Kumme

Abstract

Dynamic forces realised by accelerated load masses are traceable to acceleration and mass according to the force definition. For the reduction of the measurement uncertainty, the acceleration distribution of the acting mass has to be determined with higher accuracy. This is possible by using laser interferometer and suitable methods for signal processing and data analysis. In particular a method of using heterodyne laser interferometer for dynamic force calibration is investigated. Different signal processing and data analysing methods are compared. A force transducer is investigated with interferometric procedures and it is demonstrated that improvements are possible in dynamic force calibration by laser interferometer.

Keywords

Dynamic force, Laser interferometer, Calibration

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PWC-2003-TC3-015.pdf

DOI

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IMEKO TC

TC3 - Measurement of Force, Mass, Torque, and Gravity

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