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Introduction of induction coil
Time:
2021-10-08
Source:
An induction coil is a device that works according to the principle of electromagnetic induction.. When current flows through the wire, a certain electromagnetic field will be generated around the wire, and the wire itself will induce the wire in the electromagnetic field.
induction coilIt is a device that works according to the principle of electromagnetic induction.. When current flows through the wire, a certain electromagnetic field will be generated around the wire, and the wire itself will induce the wire in the electromagnetic field.. The effect of the electromagnetic field generated by the wire itself is called "self-inductance", that is, the changing magnetic field generated by the changing current generated by the wire itself,. This, in turn, affects the current in the wire; the effect on other wires in this electromagnetic field is called "mutual inductance".
The electrical characteristics of an inductive coil are opposite to those of a capacitance., That is, "pass low frequency, block high frequency". When high-frequency signals pass through inductors, they will encounter great resistance and are difficult to pass.. However,. The resistance to low-frequency signals passing through it is relatively small, that is, low-frequency signals easily pass through it.. The resistance of the inductance coil to direct current is almost zero.
resistance, capacitance and inductance,. They all produce a certain resistance to the flow of electrical signals in the circuit. This resistor is called "impedance". The impedance presented by the inductive coil to the current signal exploits the self-inductance of the coil. Inductance coils are sometimes referred to as "inductors" or "coils", denoted by the letter "L.. When winding an inductor coil, we generally refer to the number of turns of the coil.
induction coilClassification
Several types of inductors are commonly used in circuits:
Classified by inductance: fixed inductance and variable inductance..
According to the nature of magnetizer classification: hollow coil, ferrite coil, iron core coil, copper core coil.
Classified by operating characteristics: antenna coil, oscillation coil, choke coil, notch coil and deflection coil.
According to the winding structure classification: single-layer coil, multi-layer coil, honeycomb coil, close-wound coil, interwinding coil, tubeless coil, honeycomb coil, random winding coil..
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