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G&M Golden Magnetic Technology (Hongkong ) Co.,Ltd.

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magnetic flux
Nov 09, 2018

In a uniform magnetic field with a magnetic induction intensity of B, there is a plane of area S and perpendicular to the direction of the magnetic field. The product of the magnetic induction intensity B and the area S is called the magnetic flux passing through this plane, which is called magnetic flux (Magnetic Flux). Scalar, the symbol "Φ".

In general, the magnetic flux is defined by the integral of the magnetic field over the surface area. Where Φ is the magnetic flux, B is the magnetic induction, S is the curved surface, B·dS is the dot product, and dS is the infinitesimal vector (see surface integral). Magnetic flux is usually measured by a flux meter. The flux meter includes a measuring coil and a circuit that estimates the voltage change across the measuring coil to calculate the magnetic flux.


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