Patent ID: 9203259
Filing Date: 2015-12-01
Classification: G01N,H01F,H02J,H05B

Abstract:
1. A sensing device, comprising a sensing transmitting module and a sensing receiving module which are respectively mounted in a first housing and a second housing separated from each other, wherein an output terminal of the sensing transmitting module and an input terminal of the sensing receiving module are respectively provided with a sensing coil and an electromagnetic rod corresponding to each other, the first housing and the second housing are cooperated with each other in a concavo-convex manner, and the electromagnetic rod is inserted into the sensing coil, so that the sensing coil or the electromagnetic rod of the sensing receiving module is placed in magnetic field generated by the electromagnetic rod or the sensing coil of the sensing transmitting module, thereby generating sensing voltage; wherein a ringed protective sleeve whose ring body is hollowed and formed on the first housing, and the sensing coil is mounted within the protective sleeve and encompassing a ring center thereof; a protective rod which is available to extend to the ring center of the protective rod and cooperate with the protective sleeve is formed on the second housing, and the protective rod is hollowed in which the electromagnetic rod is mounted.