Collecting helm potentiometer to measure instrument, using of relay array to control precision power supply to test helm potentiometer. and then deciding helm potentiometer is up to standard or not.
The instrument is specially designed for simplicity in measuring the contact resistance of switch, relay, plug, connector, or between electrolytic lead leg and electrode.
该仪器是专为简单的测量开关接触电阻，继电器，插头，连接器，或腿之间的电解铅和电极。
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This paper summarizes the relay twitter test in details, and explains the function of instantaneous switching instrument during this test.