Inductance measuring instrument is a commonly used measuring instrument, with a simple use of the sorting function, to meet the unit of the purchase inspection and inductive production line rapid sorting measurement requirements. Xiaobian today mainly to introduce the working principle of inductance measuring instrument and wiring methods, hoping to help users better use of inductance measuring instrument. Inductance measuring instrument works The inductance tester adopts a bridge circuit structure, a standard inductor and a tested inductor as two arms of a bridge circuit. When the inductor inductance measurement, the test voltage is applied to both the standard inductor and the inductor under test, the processor through the sensor with the acquisition of both the current signal and processed through the inductor value of the inductor under test. Due to the adoption of standard inductors, the synchronous sampling technology of the tested inductors can be independent of the fluctuations of the power supply voltage; besides, the measurement process is performed automatically and the errors caused by manual operation are avoided, so the invention has the advantages of good stability, good repeatability and accuracy Reliable features. Inductance measuring instrument wiring method 1, one end of the voltage cable connected to the voltage output terminal; 2, the test current signal cable inserted in the current input plug, 3, connect the capacitor bridge power cable. 4, the test voltage and voltage cables were clamped on the connection of the two capacitors on the test bus, the clamp meter card in the required measurement of a single capacitor at the casing. Note: Be sure to pass the voltage output red end line through the front of the clamp meter and then to the sleeve of the single capacitor (reactor) to be measured. The measurement is not accurate when the counter is connected.