JPH0380340U

JPH0380340U -

Info

Publication number: JPH0380340U
Application number: JP14120789U
Authority: JP
Priority date: 1989-12-06
Filing date: 1989-12-06
Publication date: 1991-08-16

Description

[Brief explanation of drawings]

第１図はこの考案による圧力センサの一実施例
を示す概略断面図、第２図は第１図に示すものの
金属ダイアフラムと歪みゲージとの関係を示す斜
視図、第３図は従来の圧力センサを示す概略断面
図である。１，２１……ボデイ、２，２２……金属ダイア
フラム、３，２３……歪みゲージ、４，２４……
回路部材、５，２５……小径孔、６，２６……中
径孔、７，２７……大径孔、８，２８……凹所、
９，１７，２９……フレキシブルサーキツト、１
０，１６，３０……Ｏリング、１１，３１……固
定リング、１２……導電部材、１３……付勢部材
、１４，３４……蓋部材、１５，３６……凹溝、
１８……ターミナル、１９，３５……リード線、
３２……ナツト、３３……ブラシ。 Fig. 1 is a schematic sectional view showing an embodiment of the pressure sensor according to this invention, Fig. 2 is a perspective view showing the relationship between the metal diaphragm and strain gauge of the pressure sensor shown in Fig. 1, and Fig. 3 is a conventional pressure sensor. FIG. 1,21...Body, 2,22...Metal diaphragm, 3,23...Strain gauge, 4,24...
Circuit member, 5, 25... small diameter hole, 6, 26... medium diameter hole, 7, 27... large diameter hole, 8, 28... recess,
9, 17, 29...Flexible circuit, 1
0, 16, 30... O ring, 11, 31... Fixed ring, 12... Conductive member, 13... Biasing member, 14, 34... Lid member, 15, 36... Concave groove,
18...terminal, 19,35...lead wire,
32...Natsuto, 33...Brush.

Claims

[Scope of utility model registration request]

A cylindrical body 1 and a diaphragm 2 disposed within the body 1 and displaced by the action of pressure.
, a strain gauge 3 provided on the diaphragm 2 and changing the resistance value according to displacement of the diaphragm 2; and a circuit provided on the body 1 and outputting the amount of change in the resistance value of the strain gauge 3 to the outside. A pressure sensor comprising a member 4, wherein the diaphragm 2 is attached to the body 1 via an elastic member 10 in the direction of pressure displacement, and a clearance A is provided between the diaphragm 2 and the body 1. pressure sensor.