Inductance of Air Core Inductor Calculator
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Inductance of Air Core Inductor Calculator is a free online tool which calculates the inductance of an air core inductor.
Introduction
Air core coil is an inductor that does not use a magnetic core, and the term refers to coils wound on plastic, ceramic, or other nonmagnetic forms, as well as those that have only air inside the windings. That is to say, an air core inductor is a type of wire coil that has no solid core inside the coil. The cores in the air inductors are made up of ceramic material which gives the right strength to the product. Air core coils have lower inductance than ferromagnetic core coils, but are often used at high frequencies because they are free from energy losses called core losses that occur in ferromagnetic cores, which increase with frequency.
Inductance Equations
The following formulas can be used to calculate the air core inductor inductance:
Method 1:
where:
L is inductance in micro Henrys.
d is coil diameter in inches.
l is coil length in inches.
n is number of turns.
Method 2:
Where:
L is inductance in μH.
d is coil diameter in inches.
l is the coil length in inches.
b is coil winding wire diameter in inches.
N is the total turns of wire.
Applications
Air core coils have lower inductance than ferromagnetic core coils, but are often used at high frequencies because they are free from energy losses called core losses that occur in ferromagnetic cores, which increase with frequency. The core material is air, so it has low permeability hence lower inductance so, it can be used for high-frequency applications. It is used for constructing RF tuning coils. The air core inductor is used in filter circuits.
People Also Ask (Q&A)
1. What is an air core?
Having no magnetic material (as iron) in its magnetic circuit —used especially of certain coils, solenoids, or transformers.
2. What is an air core inductor?
The term air core coil describes an inductor that does not use a magnetic core made of a ferromagnetic material. The term refers to coils wound on plastic, ceramic, or other nonmagnetic forms, as well as those that have only air inside the windings.
3. How do you calculate the inductance of an air coil?
To calculate the inductance of a single-layer, air-core coil:
Select the measurement units (inches or centimeters).
Enter the number of turns (windings).
Enter the coil diameter (form diameter + wire diameter).
Enter the coil length (distance from first to last winding).
Click Calculate.
4. What are air core inductors used in?
Air Core Inductor
It is used for constructing RF tuning coils.
The air core inductor is used in filter circuits.
Snubber Circuit
It is used to ensure a lower peak inductance.
It is used in high-frequency applications including TV and radio receivers.
5. What is the basic principle of inductor?
An inductor is a passive electronic component which is capable of storing electrical energy in the form of magnetic energy. Basically, it uses a conductor that is wound into a coil, and when electricity flows into the coil from the left to the right, this will generate a magnetic field in the clockwise direction.
6. Why does inductor block AC and allows DC?
An inductor blocks AC while allowing DC because it resists a change in current. ... If you apply DC across an inductor, it will stabilize to some current flow based on the maximum current available from the current / voltage source.
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