Microprocessor-based hand-held electrical-testing system and method

  • US 6,771,073 B2
  • Filed: 01/03/2003
  • Issued: 08/03/2004
  • Est. Priority Date: 01/04/2002
  • Status: Active Grant
First Claim
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1. A method of measuring voltage drops in an electrical system, the method comprising:

  • connecting a plurality of load leads to a charging component of the electrical system, said plurality of load leads including a positive load lead and a negative load lead, each of said plurality of load leads being coupled to a testing device;

    connecting a plurality of voltage leads to a battery of the electrical system, said plurality of voltage leads including a positive voltage lead and a negative voltage lead, said plurality of voltage leads being coupled to said testing device;

    applying a load of known resistance to the electrical system by the testing device;

    measuring a voltage at the load;

    measuring a first voltage drop between the positive load lead and the positive voltage lead; and

    measuring a second voltage drop between the negative load lead and the negative voltage lead, wherein measurements of the first and second voltage drops are based, at least in part, on the voltage at the load.

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