Analogue sensor for measuring angular displacement, especially for a motor vehicle steering wheel column, has one or more of its rotating plates made as thin films to reduce its size

摘要

Analogue sensor (13) for measuring angular displacement comprises at least a first annular plate (25) supporting at least a first coil plate arranged in a circular arc and at least a second annular plate (23) support means for varying the impedance of the first coil plate. The first and second plates are adapted to be fixed to first (15) and second (3) organs that rotate relative to each other, such that the coil impedance varies. At least one of the annular plates is formed from a thin film. The invention also relates to a steering wheel column equipped with an inventive sensor.