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Permeance Coefficient Calculator

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This tool calculates the magnetic permeance coefficients (PC) for disc, ring and rectangular magnets of various dimensions. You can use this to determine the operating point of the magnet on the B-H Curve.

Dimensions can be in any units of measure as long as they are consistent with each other.

Length
Width
Thickness*
PC

* This is the orientation direction (the magnetic field flows through this direction).

Diameter
Thickness*
PC

* This is the orientation direction (the magnetic field flows through this direction).

Outside Diameter
Inside Diameter
Thickness*
PC

* This is the orientation direction (the magnetic field flows through this direction).

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