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PORTABLE APPARATUS FOR MEASURING LOAD RESISTANCE

  • US 3,816,812 A
  • Filed: 04/19/1973
  • Issued: 06/11/1974
  • Est. Priority Date: 04/19/1973
  • Status: Expired due to Term
First Claim
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1. Apparatus for measuring the resistance of a load, comprising:

  • power supply means for generating a current pulse of a predetermined amplitude, wherein said pulse is applied to the load, means for detecting voltage across the load when The current pulse is applied to the load, said detecting means providing an output corresponding to the voltage, said detecting means including means for translating said output and displaying a signal representative of the resistance of the load; and

    means for controlling display of the signal, wherein said control means includes means for providing a test signal, timing means responsive to said test signal to generate a timing signal after a predetermined period of time, and error means responsive to said test signal to indicate erroneous operation if said current pulse does not reach said predetermined amplitude within said predetermined period of time as tolled by the generator of said timing signal.

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