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megohmeter
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megohmeter

scientific instrument
Also known as: megger
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Quick Summary

A megohmmeter is a scientific instrument used to measure very large electrical resistances, typically expressed in megohms (millions of ohms). It is a type of ohmmeter designed for high resistance measurements.12

Ohmmeters work by measuring electrical resistance, which is expressed in ohms. In a simple ohmmeter, the resistance is connected in either parallel or series. A parallel ohmmeter draws more current as resistance increases, while a series ohmmeter shows a decrease in current as resistance rises. Ratio meters determine resistance by measuring the ratio of voltage across the resistance to the current flowing through it.1

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