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Device for testing a sensor of train undercarriage temperatures

  • US 8,944,677 B2
  • Filed: 09/06/2012
  • Issued: 02/03/2015
  • Est. Priority Date: 10/17/2011
  • Status: Active Grant
First Claim
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1. A method of testing an IR sensor of a rail vehicle undercarriage component, the method comprising the steps of:

  • providing a heat emitter for producing IR emissions at a reference temperature, the heat emitter comprising a heat member having a black surface coupled to a resistor;

    supporting the heat emitter on a support at a position spaced from the passage of the rail vehicle and in an orientation for directing the IR emissions at the IR sensor;

    activating the heat emitter to produce IR emissions at the reference temperature and heating the black surface by the resistor; and

    comparing the reference temperature of the IR emissions and the temperature detected by the IR sensor.

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