Isolator apparatus

Details Isolator apparatus Isolator apparatus

G - Physics

01

L

73/129

G01L 7/08 (2006.01) G01L 9/00 (2006.01) G01L 13/02 (2006.01)

Patent

CA 1322472

ABSTRACT OF THE DISCLOSURE An isolator apparatus for coupling pressure from a pressurized fluid carried in a conduit to a pressure sensor in a pressure transmitter having an isolation diaphragm, isolation fluid, and a pressure sealing ring for providing an annular seal around an active region of the isolation diaphragm. The isolator apparatus includes a rigid support for spacing the pressure sealing ring away from the active region which reduces pressure measurement errors related to temperature-induced isolation fluid expansion, such that the annular seal overhangs the isolation diaphragm's active region.

560921

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