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Heated pressure transducer assembly

  • US 5,625,152 A
  • Filed: 01/16/1996
  • Issued: 04/29/1997
  • Est. Priority Date: 01/16/1996
  • Status: Expired due to Term
First Claim
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1. A pressure transducer assembly comprising:

  • (A) an external enclosure defining an interior cavity;

    (B) a pressure sensor, disposed in one portion of said interior cavity and including an input port for receiving a gas or vapor, for sensing the pressure of the gas or vapor at the input port as a function of a parameter value that varies according to the pressure of the gas or vapor at the input port;

    (C) controller means, disposed in another portion of said interior cavity, for sensing the parameter value and for generating in response thereto an output signal representative of the pressure at said input port;

    (D) first temperature control means for controlling the temperature of said sensor;

    (E) second temperature control means for controlling the temperature of said controller means; and

    (F) thermal control means for controlling said first temperature control means to control the temperature of said sensor at a first preselected temperature, and for controlling said second temperature control means to control the temperature of said controller means at a second preselected temperature different from the first preselected temperature.

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