Pressure balancing device

Details Pressure balancing device Pressure balancing device

G - Physics

01

D

G01D 3/028 (2006.01) E21B 47/06 (2012.01) G01L 1/26 (2006.01) G01L 19/06 (2006.01)

Patent

CA 2739214

A pressure balancing device for a transducer is described. The pressure balancing device has a pressure transmission device such as a piston, bladder, diaphragm or bellows for example arranged, in use, to be exposed to a fluid such as a downhole well fluid. A fluid chamber having a hollow shaft is arranged to be acted on by the pressure transmission device. The cross-sectional area of the hollow shaft is arranged to be less than that of the pressure transmission device to reduce resistance forces. The hollow shaft may be a load transmission shaft which may be connected to a load sensor.

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