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MEASURING JIB LENGTH OF A CRANE

  • US 20150077283A1
  • Filed: 05/06/2013
  • Published: 03/19/2015
  • Est. Priority Date: 05/23/2012
  • Status: Active Grant
First Claim
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1. A method of wear-free determination of an overall length of a jib of a crane, the method comprising the steps of:

  • feeding a signal into the jib at a first point on the jib;

    detecting the signal at a second point on the jib; and

    determining the overall length of the jib from the time required for the signal to pass from the first point to the second point.

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