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Deflection monitoring system

  • US 5,850,185 A
  • Filed: 04/03/1996
  • Issued: 12/15/1998
  • Est. Priority Date: 04/03/1996
  • Status: Expired due to Term
First Claim
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1. A deflection monitoring system for detecting deflections in a structure, the monitoring system comprising:

  • an energy source for generating an energy beam along a path near the structure;

    a receiver for receiving the energy beam;

    at least one solid target attached to and extending downwardly from the structure and located near the path; and

    an alarm connected to the receiver;

    wherein the target is displaceable into the path by a vertical deflection in the structure, the alarm being triggered by the receiver in response to displacement of the target relative to the path.

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