IMPACT RESPONSE MEASUREMENT OF A FORCE TRANSDUCER

Y. Fujii

Abstract

A method for measuring the impact response of force transducers is proposed. In this method, a mass is made to collide with a force transducer, and the instantaneous value of the force acting on the sensing point of the transducers is determined by measuring the instantaneous value of the acceleration of the inertial mass. To realize linear motion with sufficiently low friction acting on the mass, a pneumatic linear bearing is used, and the velocity of the mass, the moving part of the bearing, is measured using an optical interferometer. An impact force with half value width of approximately 5ms to 20ms is applied to a semiconductor strain gauge force transducer, and the values measured by the transducer and by this method are compared.

Keywords

force transducer, dynamic characteristics, impact, impulse, interferometer, pneumatic linear bearing, air slide, conservation of momentum

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IMEKO-WC-2000-TC3-P069.pdf

DOI

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IMEKO TC

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

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