Air Core Coil Calc

Enter the number of turns windings.

Air core coil calc.

Calculate the inductance of a single layer coil of a 10 turn air core coil wound on a cylindrical former with a diameter of 2 cm. L d 2 n 2 18d 40l where. D is the coil diameter in meters. Formula equations for inductance of air core inductor calculator inductance of an air core coil inductor l n2 x d2 18d 40l μh where n number of turns d inductor coil diameter l inductor coil length.

The length of the coil is 1 cm. D coil diameter in inches inches l coil length in inches inches n number of turns inductance. Air core inductor coil inductance calculator. Coil inductance calculator to calculate the inductance of a single layer air core coil.

Some inductors are wound without a bobbin and just air as the core. This calculator is useful when making antenna matching units low pass filters crystal sets antenna traps resonant circuits or anywhere where an air cored single layer inductor is required. L is the coil length in meters 0 8radius n is the number of turns. Get help for the inductor designer close.

Enter the coil diameter form diameter wire diameter see diagram. Advantages of an air core coil. The calculation is based on the classic wheeler s formula for single layer inductance air core tightly wound which dates back to the radio days of the 1920s. Enter the coil length distance from first to last winding see diagram.

Could this be possible. Select the measurement units inches or centimeters. An air core inductor is an inductor that does not depend upon a ferromagnetic material to achieve its specified inductance. The following is a design tool which calculates the inductance of an air core inductor.

L 0 001n2d 228d 2 254l where. L is the inductance in henry s. The calculator determines the inductance of a single layer coil. The inductor is a common school use transformer 5000 turn coil with wire diameter about 0 15mm the official air core value is 0 6h however when i calculate the iron core got a result of 105h.