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Apparatus and method for detection of latent faults in redundant systems

  • US 5,325,062 A
  • Filed: 07/10/1992
  • Issued: 06/28/1994
  • Est. Priority Date: 07/10/1992
  • Status: Expired due to Fees
First Claim
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1. Apparatus for fault detection in an electrical system that includes a power source connected to at least one electrical component capable of failure, said apparatus comprising:

  • test signal generation means, connected to the electrical system to form an electrical circuit path including the at least one component, for generating a first signal and for applying the first signal to the path such that the first signal passes through the at least one component; and

    receiver means, connected to said test signal generation means via said path, for producing a second signal, indicative of whether the first signal is present in said path during a predetermined period of time,wherein failure of the at least one component prevents passage of the first signal on said path.

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