LINEAR DISPLACEMENT-ELECTRICAL SIGNAL TRANSDUCER, PARTICULARLY FOR AUTOMATIC LEVELLING DEVICES FOR MOTOR VEHICLE SUSPENSIONS

摘要

In order to detect relative linear displacements between two members, the transducer includes a fixed part or stator connectible to one of the members and a movable part or rotor rotatably supported by the fixed part. A flexible traction member has one end anchored to the other member and its other end connected to the rotor in such a way as to cause rotation of the latter in one sense relative to the stator when the members move away from each other. The transducer also includes a return spring which tends to rotate the rotor in the opposite sense of rotation when the two members move towards each other. Electrical sensor means output electrical signals indicative of the angular position of the rotor relative to the stator and hence of the relative position of the two members.