Electrical instrumentation

Ammeter voltmeter dc exporter:Traditional analog voltmeters and ammeters are based on a principle that is the magnetic effect of current. The greater the current.

The principle of the voltmeter is that the greater the magnetic force generated, the greater the swing of the pointer on the voltmeter. There is a magnet and a wire coil in the voltmeter. After passing the current, the coil will generate a magnetic field. After the coil is energized Deflection occurs under the action of the magnet, which is the head part of the ammeter and voltmeter.

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