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1. (WO1998052007) A MAGNETIC INDUCTION TYPE PRESSURE SENSOR

Pub. No.:    WO/1998/052007    International Application No.:    PCT/CN1997/000046
Publication Date: Fri Nov 20 00:59:59 CET 1998 International Filing Date: Tue May 13 01:59:59 CEST 1997
IPC: G01L 9/00
G01L 19/08
H01H 35/24
H01H 35/36
Applicants: LO, Jui, Yang

Inventors: LO, Jui, Yang

Title: A MAGNETIC INDUCTION TYPE PRESSURE SENSOR
Abstract:
The invention disclosed is a magnetic induction type pressure sensor comprising bourdon pipe, transmission mechanism and printed circuit board. The bourdon pipe could product a linear deformation proportionally pressure acting on it, to drive central rotation shaft through the transmission mechanism. There is a rotating dish on the shaft, with magnet provided for the outer edge. When the rotating dish relatively move to the printed circuit board the magnetic spring switch whereon could be inducted to close through magnetism of the magnetic in order to turn on the circuit by the magnetic spring switch. Displacement produced by the bourdon pipe, corresponding being measured pressure, could drive the rotating dish to pivot the central rotation shaft through the transmission mechanism, as to turn on the magnetic spring switch on the corresponding position to obtain the corresponding resistance value.