DIAPHRAGM PRESSURE SENSOR

摘要

A diaphragm pressure sensor is provided to seal a joint surface without interposing an O-ring between joint surfaces of each housing. A diaphragm pressure sensor comprises a housing. The housing is composed of a first housing(3) of a first survey and a second housing(5) of a second survey. A protrusion(21) approximately having the cross section of a wedge shape is formed at one side of a joint surface of the first housing and the second housing. A groove(23) is formed on the other side of the joint surface. A peripheral part(30B) of a water pressure film is inserted and is supported between the protrusion and the groove.