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How to judge the quality of the integrated inductor - focus on microfluidic control technology

Good or bad judgment: For the chip inductor, the reading should be zero. If the multimeter reading is too large or infinite, the inductance is damaged.
Inductance measurement: Turn the multimeter into the buzzer diode and place the test leads on the two pins to see the multimeter's reading.
For the number of turns of the inductor coil, the coil diameter of the coil will be several tens to hundreds of times. Usually, the DC resistance of the coil is only a few ohms.
The damage is manifested as obvious damage to the hot or inductive magnetic ring. If the induction coil is not seriously damaged and cannot be determined, the inductance can be measured by the inductance meter or judged by the replacement method.
The integrated inductor is suitable for humidity and dryness, high and low ambient temperature, high frequency or low frequency environment, and the inductance should be expressed inductive or impedance characteristics.

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