Patent ID: 6412349
Filing Date: 2002-07-02
Classification: G01L

Abstract:
An apparatus for measuring the differential pressure between at least two fluids comprising:first and second pressure deformable members exposed to and sealing respective fluids, said pressure deformable members being rigidly linked so as to move as one unit; a position sensor for determining displacement of said pressure deformable members; and a force balancer which applies a force to the rigidly linked deformable members to decrease said displacement; said first pressure deformable member comprising a substantially nonflexible circular first plate sealingly connected to a substantially flexible first shell of revolution where said first shell is solely concave on one surface thereof and said second pressure deformable member comprising a substantially nonflexible circular second plate sealingly connected to a substantially flexible second shell of revolution where said second shell is solely concave on one surface thereof.