THE NON-LINEARITY OF PIEZOELECTRIC FORCE TRANSDUCERS AND THEIR ANALYTICAL MODELLING

Oliver Mack

Abstract

This contribution deals with possible reasons for the non-linear behaviour of piezoelectric force transducers, previously unknown. <br />
Possible reasons are interactions between isotropic elements such as force introduction and the anisotropic piezoelectric sensor element, geometrical non-linearities of the force transducer and non-linearities of the piezoelectric material. <br />
This paper discusses the influence of geometrical nonlinearities. A theory for analytical modelling of
piezoelectric force transducers is developed and presented.

Keywords

piezoelectric force transducer, force measurement, non-linearity

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PWC-2003-TC3-022.pdf

DOI

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IMEKO TC

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

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