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Interrogation system for active monitoring of structural conditions

  • US 7,322,244 B2
  • Filed: 08/09/2006
  • Issued: 01/29/2008
  • Est. Priority Date: 09/22/2003
  • Status: Expired due to Fees
First Claim
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1. A system for monitoring structural health conditions by use of a plurality of patch sensors to be attached to an object, each said patch sensor being capable of at least one of generating a wave upon receipt of an actuator signal and developing a sensor signal in response to said wave, said system comprising:

  • a tree structured relay unit including;

    a root node; and

    at least one lower level node including at least one leaf node connected to said patch sensors, said lower level node including a plurality of switches;

    wherein said plurality or switches are operated to establish a channel between said root node and a selected one of said patch sensors and wherein said actuator signal or sensor signal is transmitted through said channel.

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