PROCESS FOR MEASURING AND ANALYSING POTENTIALS OF PIEZO-ELECTRICAL ORIGIN GENERATED BY A RIGID MEMBER OF ORGANIC MATERIAL

摘要

This process comprises the detection of piezo-electrical potentials which are characteristic of a mechanical action exerted on a elongated rigid member of organic material. To that effect, potentials are measured at two points remote of this member by means of two operational amplifiers (CI1 and CI2) so as to obtain a characteristic signal of the stress rather than its derivative and these signals are processed by means of analog operators (OA1, OA2, OA3) to identify the flexion stress ((Alpha)F) and the torsion stress (T) which are then compared to reference values (RT, RF) with the aim to, for example, generate a signal. This process may be used particularly to control the opening of a safety ski binding.