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Dynamic rail longitudinal stress measuring system

  • US 5,386,727 A
  • Filed: 03/03/1993
  • Issued: 02/07/1995
  • Est. Priority Date: 06/02/1992
  • Status: Expired due to Fees
First Claim
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1. An apparatus for measuring the longitudinal stress in a section of railroad rail, comprising:

  • (a) transmitting means for transmitting an ultrasonic signature signal into said section of rail;

    (b) receiving means spaced from said transmitting means for receiving the transmitted ultrasonic signature signal from said section of rail, said received signature signal having been altered by said rail section depending upon the longitudinal stress within said rail section;

    (c) means for processing the altered ultrasonic signature signal to generate a variable dependent upon the longitudinal stress in said rail section; and

    (d) means for calculating the longitudinal stress in the rail section based upon said generated variable.

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