Non-compliant pressure cell

Details Non-compliant pressure cell Non-compliant pressure cell

G - Physics

01

L

73/8

G01L 7/08 (2006.01) G01L 9/00 (2006.01)

Patent

CA 1251337

ABSTRACT OF THE DISCLOSURE The present invention is a pressure sensing and measurement device that eliminates errors due to compliance and lack of sensitivity. The cell uses a pressure receiv- ing means (such as a flexible diaphragm) to detect an impinging object, a means to counteract the pressure caused by the impinging object (such as internal hydraulic pressure), and a detector to measure the amount of internal pressure used to counteract the impinging force. Since the cell is internally pressurized to a point equal to a value equal to the external pressure, the diaphragm is undeflected and may avoid the problems inherent in simple diaphragm systems (such as bridging and insensitivity).

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