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LEAK DETECTOR

  • US 20170234761A1
  • Filed: 02/15/2016
  • Published: 08/17/2017
  • Est. Priority Date: 02/15/2016
  • Status: Active Grant
First Claim
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1. A single-hand operable, single-hand sized, handheld portable gas leak detector comprising:

  • (a) a single-hand sized housing enclosure having an interior volume and having a length, a width, and a thickness, the length extending longitudinally from a bottom surface to a top surface, the width extending from a left side surface to a right side surface, and the thickness extending from a back side surface to a front side surface;

    (b) an intake probe tube extending away from the interior of the housing enclosure;

    (c) an optical bench disposed within said housing enclosure that includes an air sample tube having an infrared (IR) emitter module at one end of the air sample tube and an IR sensor module at the opposite end of the air sample tube, an inlet near said IR emitter module fluidly connected with said intake probe tube, and an outlet near said IR sensor module fluidly connected with an air pump within said housing enclosure via a flexible tube, said optical bench being insulated from bending within said housing enclosure;

    (d) said IR sensor module having a wide band optical filter oriented between air drawn in to said air sample tube and an IR sensor within said IR sensor module;

    (e) an analog to digital converter (ADC) electrically interconnected with said IR sensor module;

    (f) a microprocessor (CPU) electrically interconnected with said ADC and adapted for performing an algorithm that triggers detection of a gas when a change in IR energy between said IR emitter module and said IR sensor module is more rapid than a thermal drift of said IR sensor module; and

    (g) a battery power supply electrically interconnected with said CPU, said ADC, said air pump, said IR emitter module, and said IR sensor module.

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