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Steam trap operation detector

  • US 4,898,022 A
  • Filed: 11/28/1988
  • Issued: 02/06/1990
  • Est. Priority Date: 02/09/1987
  • Status: Expired due to Term
First Claim
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1. A steam trap operation detector comprising a detecting section (1) and an arithmetic section (50);

  • said detection section (1) including;

    a probe (2) arranged to be brought into contact with an object to be detected with a predetermined pressure given by an elastic member for detecting mechanical vibration owing to a steam current and a condensed-water current within said object to be detected;

    diaphragm means (21) for generating ultrasonic vibration in response to said mechanical vibration detected by said probe (2);

    a vibration sensor (16) provided in opposition to said diaphragm means (21) for converting said ultrasonic vibration into an electric signal;

    a circuit board (20) containing an amplifying circuit for amplifying an output signal of said vibration sensor (16) so as to transmit the amplified output to the outside;

    said arithmetic section (50) including;

    a memory (M) for storing data corresponding to a variety of steam traps inclusive of said object to be detected;

    a central processing unit (CPU) for performing computation while executing comparison between the output signal transmitted from said detecting section (1) and predetermined data selectively obtained from said data stored in said memory (M); and

    output units (D;

    S) for displaying the result of computation of said central processing unit (CPU) and/or for generating a sound output of an audible frequency.

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