Title :
Magnetosensitive displacement sensor-a noncontact type sensor
Author :
Shichang, Zhou ; Xingmin, Cao ; Entao, Zhou
Author_Institution :
Northeast Univ. of Technol., China
Abstract :
A sensor is proposed for measuring the displacement of a moving part in a hydraulic system. Magnetosensitive resistance is used as the sensing element; the displacement of the measured part is reflected by the variation of the magnetic field and sensed by a magnetosensitive resistance. The magnetosensitive element is a thin film resistance with strong magnetism. It is very sensitive not only to the variation of magnetic field intensity but also to the change of direction of magnetic field. It has a high sensitivity and a good temperature characteristic. The relationship between output voltage and temperature is linear making compensation easy
Keywords :
displacement measurement; electric sensing devices; hydraulic systems; magnetic thin film devices; thin film resistors; displacement sensor; hydraulic system; magnetic field direction; magnetic field intensity; magnetosensitive resistance; noncontact type sensor; sensitivity; temperature characteristic; thin film resistance;
Conference_Titel :
Control, 1988. CONTROL 88., International Conference on
Conference_Location :
Oxford
Print_ISBN :
0-85296-360-2
