Pressure sensor

Details Pressure sensor Pressure sensor

2005-10-18

2005-10-18

Oen, William (Department: 2855)

Measuring and testing

Fluid pressure gauge

Diaphragm

C438S053000

Reexamination Certificate

active

06955089

ABSTRACT:
A pressure sensor includes a casing having a pressure detection chamber, a diaphragm for receiving pressure of a measuring object and disposed on the casing, and a pressure detection element. The pressure detection chamber is filled with a liquid, and the diaphragm contacts the liquid. The pressure detection element is disposed in the pressure detection chamber to receive the pressure of the liquid. The diaphragm has a plate shape with a radius of R and includes a circumference and a center of the plate. The circumference is fixed to the casing. The diaphragm further includes a corrugate disposed concentrically with the center of the diaphragm and having a half circular cross-section and a top of the half circle. The top of the corrugate is disposed within a distance of 0.6 R from the center of the diaphragm.

REFERENCES:
patent: 5064165 (1991-11-01), Jerman
patent: 5116457 (1992-05-01), Jerman
patent: 5177579 (1993-01-01), Jerman
patent: 5209118 (1993-05-01), Jerman
patent: 5565629 (1996-10-01), Yamashita
patent: 2002/0162399 (2002-11-01), Esashi et al.
patent: 2004/0079161 (2004-04-01), Shimomoto et al.
patent: A-S63-243830 (1996-02-01), None
patent: A-H08-159900 (1996-06-01), None

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