Measuring working principle of the tongs

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The measuring working principle of the clamp meter

the clamp meter is an instrument integrating the current transformer and the ammeter, and its working principle is the same as that of the current transformer. Pincer meter is composed of current transformer and ammeter. The iron core of the current transformer can be opened when the wrench is tightened; The use of the tested current impact testing machine is becoming more and more common in all walks of life. The wire passed through can pass through the iron core without cutting off. It wants to turn the white plastic bag and yellow packing box into a gap in the invisible forest. When the wrench is released, the iron core is closed. The tested circuit wire passing through the iron core becomes the primary coil of the current transformer, and the current is induced in the secondary coil through the current. Thus, the ammeter connected with the secondary coil will have an indication ----- measure the current of the measured line

the pincer meter can change different ranges by shifting the gear of the change-over switch. However, it is not allowed to operate with electricity when shifting gears. The accuracy of Jinan era bone screw torsion testing machine is generally not high, usually 2.5-5 levels. In order to be convenient to use, there are transfer switches with different ranges in the meter for measuring different levels of current and voltage

the clamp on meter was originally used to measure AC current, but now it also has some functions of multimeter, which can measure the voltage, current, capacitance, diode, triode, resistance, temperature, frequency and so on

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