| 摘要 |
<p>A method and apparatus for measuring current drain and other circuit parameters, particularly in vehicular electrical systems, the apparatus utilizing a reference current source (80,82) passed through a commonly available system element (8) (the battery ground strap in an automobile) to calibrate a visual indicator (66) in the circuit (14,20,18,38,66) for the particular system being tested. Readings of electrical values can then be made for various parts of the system under test.</p> |
