The measurement method of SMD coil inductance In daily use:

                 The measurement method of SMD coil inductance In daily use:

① Make an AC generator, set the frequency to 100Hz, output a relatively stable voltage of 10V;

②Install this circuit in the pointer multimeter, change the multimeter, which means, string this circuit into the measurement loop during measurement;

③Look for a few inductances with known inductance to measure, use high-end for high-inductance, low-end for small inductance, and record the position of the needle deflection. Use this as a benchmark to estimate the approximate inductance of the patch coil Feel the amount.

Research institutes:

Use a dedicated patch coil inductance tester, generally 10nH upwards and use 10kHz or 1kHz to measure. If the inductance of the patch coil is relatively small, you can choose to increase the frequency. The inductance tester is used in conjunction with the special chip coil inductance fixture, which can achieve a good contact effect and the test data is more stable.

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