Calculating Inductance Of Flat Sheet Of Copper

The inductance of a flat or ribbon wire or a track on a pcb can be calculated with the following equation.

Calculating inductance of flat sheet of copper.

Lcoil l c o i l inductance of the coil in henries h n 2 n 2 number of turns. Some people call it magnet wire. Resources eis inductance calculator. However even a straight piece of wire or your electrode has some self inductance this can be important if you are dealing with low impedances 1 ohm at high frequencies 10khz.

μ0 μ 0 permeability of free space 4π 10 7. Using the coil inductance calculator. Enter the coil diameter measured as depicted in the diagram above. Enter the coil length measured as depicted in the diagram above.

We generally associate inductance with a loop or coil of wire. If we wind a wire into a coil it obviously creates inductance but even a straight piece of wire or a component lead has some parasitic inductance caused by the magnetic field that it creates. Select the geometry of your coil from the list. One formula for inductance is as follows.

On the contrary wires have a certain amount of resistance that increases with length and decreases with diameter. D d loop diameter. Length of the conductor mm w. Lcoil n 2μ0μr d 2 ln 8d d 2 l c o i l n 2 μ 0 μ r d 2 l n 8 d d 2 where.

This formula applies at low frequencies 30mhz using enameled copper wire. Strap inductance 0 2 l in 2 l w t 0 223 w t l 0 5 dimension where l length w width t thickness if dimension unit is mm then dimension 1. If dimension unit is mils then dimension is 0 0254. Even a single straight piece of wire has some inductance.

D d wire diameter. A flat spiral coil is a type of an air core inductor usually incorporated in the primary of a tesla generator rfid tag and proximity detectors. This calculator uses javascript and will function in most modern browsers. L inductance u r relative permeability of the core material air 1 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.

ρ is the resistivity of the conductor in ω m. Width of the conductor mm t. 1 inch 0 0254m 2 54cm 25 4mm. Inductance of the conductor μh ell.

μr μ r relative permeability. Thickness of the conductor mm. You can choose from single layer solenoid multi layer solenoid and flat spiral coil forms. Copper is not a perfect conductor.

Where l is the length in cm w is the width in cm t is the thickness in cm pcb copper 1 oz ft2 0 035mm.