Air Core Coil Calc

Air core inductor coil inductance calculator.

Air core coil calc.

Some inductors are wound without a bobbin and just air as the core. The calculator determines the inductance of a single layer 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. L d 2 n 2 18d 40l where.

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

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 inductance in henry s. Could this be possible. Air core inductor designer calculator.

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. Enter the number of turns windings. L is the coil length in meters 0 8radius n is the number of turns. Advantages of an air core coil.

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. Enter the coil length distance from first to last winding see diagram. The following is a design tool which calculates the inductance of an air core inductor. L 0 001n2d 228d 2 254l where.

Some others are wound on a bobbin made of bakelite plastic ceramic etc. Get help for the inductor designer close. Select the measurement units inches or centimeters. Enter the coil diameter form diameter wire diameter see diagram.