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Temperature sensing system for use in a radio frequency environment

  • US 6,063,234 A
  • Filed: 09/10/1997
  • Issued: 05/16/2000
  • Est. Priority Date: 09/10/1997
  • Status: Expired due to Term
First Claim
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1. A temperature sensing system, comprising:

  • a sensor probe having a housing and a thermal sensing device positioned within the housing, the thermal sensing device produces an electrical signal based on a measured temperature;

    a shielded cable coupled to said sensor probe, said shielded cable includes at least one wire;

    a RF filter circuit coupled to the at least one wire within said shielded cable, said RF filter circuit receives the electrical signal produced by said sensor probe via said shielded cable and removes significant amounts of RF interference from the electrical signal and outputs a filtered electrical signal; and

    a control circuit coupled to said RF filter circuit, said control circuit amplifies the filtered electrical signal.

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