Electrical interconnect for pressure sensor in a process variable transmitter

  • US 9,638,600 B2
  • Filed: 09/30/2014
  • Issued: 05/02/2017
  • Est. Priority Date: 09/30/2014
  • Status: Active Grant
First Claim
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1. A subsea process variable transmitter, comprising:

  • a transmitter housing;

    measurement circuitry located in the transmitter housing configured to measure a pressure of the process fluid;

    a flange configured to mount the transmitter housing to a subsea process system;

    an elongate probe configured to extend from the flange into the subsea process system;

    a process fluid pressure sensor assembly at a distal end of the probe, comprising;

    a pressure sensor configured to sense a pressure of a process fluid comprising a pressure sensor body, the pressure sensor including a plurality of electrical contact pads which couple to a pressure sensing element of the pressure sensor;

    an interconnect body which is separated from the elongate probe and fits over an end of the pressure sensor body;

    a plurality of electrical connectors carried in the interconnect body electrically coupled to the plurality of electrical contact pads and which are in direct abutting contact with the plurality of electrical contact pads; and

    a wiring harness attached to the interconnect body comprising a plurality of wires which are electrically connected to the plurality of electrical connectors, the wiring harness is configured to electrically connect the pressure sensor to the measurement circuitry in the transmitter housing.

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