Microprocessor-based hand-held electrical-testing system and method
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United States of America Patent
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Aug 3, 2004
Grant Date -
Jul 10, 2003
app pub date -
Jan 3, 2003
filing date -
Jan 4, 2002
priority date (Note) -
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Abstract
The present invention provides methods and systems for testing voltage drops in positive and negative legs of an electrical system and for determining maximal current capacity of the electrical system based on the measured voltage drops. This is accomplished by connecting load leads of a testing unit at a starter or alternator of the electrical system, and connecting voltage leads of the testing unit at a battery of the electrical system. A load of known resistance is applied and a voltage at the load is measured. Voltage drops at the positive and negative legs of the electrical system are determined, based at least in part on the voltage at the load. A maximum current capacity of the electrical system is calculated based on the determined voltage drops.
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