Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
March 11, 2008
Patent Application Number
11523033
Date Filed
September 19, 2006
Patent Citations Received
Patent Primary Examiner
Patent abstract
A pressure sensor includes a casing formed with a first case and a second case that has a pressure introduction hole for introducing a measurement object, a pressure sensing portion in the casing and a metal diaphragm disposed between an end face of the first case and a reception face of the second case. The measurement object is introduced into a subspace that is formed as an expanded end of the pressure introduction hole in the second case for measurement of pressure by transmitting the pressure through the diaphragm to the pressure sensing portion, and the pressure sensing hole has an orifice that reduces a cross-sectional area of the pressure sensing hole.
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