Magnetostriction of germanjet, Germany Displacement sensor It is a durable absolute, non-contact position measurement system. It is suitable for applications where other measurement methods are not applicable. Magnetostriction Displacement sensor With a variety of shapes: rod, square, cylindrical and flat, this measurement system can adapt to a variety of installation conditions
magnetostrictive displacement sensor The linear measurement system consists of a waveguide made of magnetostrictive material and a magnet which determines the position. magnetostrictive displacement sensor The principle of side face is based on two physical effects: Wiedemann / Wiedemann effect and Villari / Villari effect.
Generation process of Widmann / Wiedemann effect: a current pulse passing through magnetostrictive displacement sensor The current pulse will generate a circular magnetic field around the waveguide at the speed of light. When the magnetic field overlaps with the magnetic field of the longitudinal moving magnet, the torsion will cause magnetostriction of the waveguide and trigger a strain pulse, which will move at sonic speed in the waveguide inside the sensor.
The detection and case of magnetostrictive displacement sensor in the electronic bin can detect the return of the strain pulse by using the Villari / Villari (magnetoelastic) effect. By calculating the time difference between the emitted current pulse and the return time of the strain pulse, the distance between the position magnet and the electronic bin can be determined. This time difference can be converted into analog or digital signal output by various well-known methods.
The technical features of the magnetostrictive displacement sensor of German demanjet company are: non-contact measurement, internal installation of oil cylinder, accuracy of 0.01%, maximum protection grade of IP68, measuring range of 15000mm, durable and maintenance free, supporting multiple signal outputs: 0-10V, 4-20mA, start / stop, SSI, PROFIBUS.