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Question:

How to use the caliper and its working principle?

How to use the caliper and its working principle?

Answer:

A multimeter is made according to the principle of the current transformer, specially used for measuring alternating current.
A part of the measuring ammeter million is determined by the current transformer and current measuring part composed of 000 table. The iron core of the mutual inductor is provided with a movable part and is connected with the handle. When the utility model is used, the movable iron core is opened by pressing the handle. The wires of the current to be measured are put into the jaw and the handle is closed to close the iron core. At this point, the current through the wire is equivalent to the transformer primary winding, the two winding will appear induction current, the size of the wire by the working current and winding coil ratio is determined. The ammeter is connected to both ends of the two winding, so that the current indicated by it is the current in the two winding, which is proportional to the current in the work. So will be good as the amount of current reflect a scale on the side of the wire when a current is passed, and the two winding connected to the ammeter pointer is in proportion to deflect, thus indicating the value of measured current.
A multimeter is a very common electrical appliance, the clamp clamp, only for the exchange of test.

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