Digital mutual inductor polarity measuring device

The utility model relates to a digital mutual inductor polarity measuring device. Its characteristics are: including microprocessor, this microprocessor is connected with analog -digital conversion chip's output, and two inputs of this analog -digital conversion chip are connected with two sets of pincerlike clips respectively, and this microprocessor still is connected with a dial switch, and this microprocessor still is connected with first pilot lamp and second pilot lamp respectively to time light second pilot lamp for the burden for lighting first pilot lamp right time detecting polarity detecting polarity. The utility model discloses the beneficial effect of device is: (1 ), adopt clamp ammeter to carry out the analog quantity collection, need not go into the return circuit with the acquisition unit cluster among, reduced test time, convenient experimental wiring. (2 ), through analog -digital conversion chip, convert the analog quantity into digital quantity, utilize the digital quantity to carry out t