Pressure sensing elements and method of making same

Details Pressure sensing elements and method of making same Pressure sensing elements and method of making same

G - Physics

01

L

G01L 7/08 (2006.01) G01L 19/12 (2006.01) G01L 19/14 (2006.01)

Patent

CA 2049192

ABSTRACT OF THE DISCLOSURE Pressure vessel components of a sensing element are formed from liquid crystal polymers. Individual LCP components may be ultrasonically adhered to one another to form a hermetic seal. In the preferred embodiment, a metal tube is hermetically sealed to a pressure vessel cup by molding an LCP resin around a cleaned and heated tube to form a hermetic seal. Also in the preferred embodiment, the sensing element includes a single convolution diaphragm formed under heat and pressure using a polyimide film.

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