Note that you can choose the unit of measurements for the loop diameter and wire diameter. Ferrite rod coil calculator 50 out of 5 based on 6 votes.Įnter 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. The ratio of the magnetic flux to the current is called the inductance. Enter the actual number of turns of wire and the measured inductance value making sure to enter the units correctly as nhuh or mh click on the calculate button and the calculator will give you the derived al value of the core. Here we can calculate wire coil number of turns core material permeability coil area average coil length and inductance. Enter the coil diameter form diameter wire diameter see diagram. L is inductance in micro henrys d is coil diameter in inches. Single layer air core inductor calculator the calculation is based on the classic wheelers formula for single layer inductance air core tightly wound which dates back to the radio days of the 1920s. Select the measurement units inches or centimeters. Number of turns.Ĭoil inductance calculator to calculate the inductance of a single layer air core coil. The coil is the most recognizable form of an inductor. Turns number of turns on the coil area the cross sectional area of the core in square meters including some of the coil as shown in the diagram length length of the coil in meters the inductance calculator below also takes inches as well as centimeters and millimeters and does the conversion to meters for you. All of the formulas on this page are shown assuming an air core toroidal inductor.
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