Cause Analysis and Solution of Digital Multimeter Value Jumping Cause Analysis and Solution of Digital Multimeter Value Jumping In the process of motor maintenance and inspection, it is a common method to measure the resistance value of motor winding with digital multimeter. However, sometimes the digital multimeter will encounter the problem of numerical jumping when measuring, and can not obtain stable measurement results, which brings trouble to judge. This paper will analyze the reasons of numerical jumping when the digital multimeter measures the resistance value of the motor from many angles, and give the corresponding solutions. The motor has not completely stopped running When the motor stops, due to the remanent magnetic action of the rotor, the induction voltage will pulsate in the motor winding. This induced voltage interferes with the measurement of the digital multimeter, causing the value to jitter. To solve this problem, the motor spindle can be […]
Digital Multimeter
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