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High sensitivity real-time NVR monitor

  • US 5,661,226 A
  • Filed: 11/09/1995
  • Issued: 08/26/1997
  • Est. Priority Date: 07/22/1993
  • Status: Expired due to Fees
First Claim
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1. An apparatus for detecting contamination, comprising:

  • a heat sink having opposing sides;

    a detection SAW resonator in thermal contact with one side of said heat sink;

    SAW control electronics, at least a portion of said SAW control electronics being in proximity to the other side of said heat sink, said portion of said electronics being electrically connected to said SAW resonator along an electrical path through said heat sink; and

    wherein there is no thermoelectric element in direct physical contact with said SAW resonator.

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