Sensor for ferromagnetic materials

摘要

In a sensor for ferromagnetic materials according to Patent ... Application P (Patent 3114352.0), in which a body is placed onto a piezoceramic platelet and piezoelectric voltages are produced at the electrodes of the platelet due to the magnetic interaction between ferromagnetic material and this body, resonances which occur are reduced by a vibration-damping medium being arranged in the sensor and acting on the piezoceramic platelet which is locally clamped at fixed points.