Industry new

A simple way to test the inductance of the inductor _ inductance coil _ electromagnetic coil

A simple way to test the inductance
The inductance of our commonly used inductors is very small, and it is difficult to judge whether the optical multimeter is good or bad.
There are only a few questions about the inductor: open circuit, short circuit, reduced inductance (rarely seen, mostly due to moisture), etc. After using the sun, you can use the multimeter to determine whether it is open circuit or short circuit. X10 file, look at its resistance value, usually a few ohms of resistance, clarify the situation of no open circuit and short circuit.
In fact, you can use a light bulb and battery, connect the inductor in series, and use the compass to approach the inductor. If the pointer is rocking, the inductor is good.

PREVIOUS：The definition of choke coil _ Inductance coiNEXT：Why high frequency inductors usually use mult