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Wireless interface within transmitter

  • US 9,048,901 B2
  • Filed: 03/15/2013
  • Issued: 06/02/2015
  • Est. Priority Date: 03/15/2013
  • Status: Active Grant
First Claim
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1. A process transmitter configured to measure a process variable of an industrial process, comprising:

  • a process variable sensor configured to sense the process variable and responsively provide a process variable sensor output;

    sensor circuitry coupled to the process variable sensor;

    output circuitry configured to communicate with the sensor circuitry;

    a housing configured to enclose the sensor circuitry and the output circuitry;

    a sensor circuit common connection which couples the sensor circuitry to the housing thereby reducing noise in the sensed process variable; and

    a wireless communication link between the sensor circuitry and the output circuitry, wherein the wireless communication link wirelessly carries a data signal related to the process variable sensor output from the sensor circuitry to the output circuitry.

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