Audio Induction Loop - Induction Loop Theory

Induction Loop Theory

The simple form of AFIL is a single wire around a room, driven from a power amplifier as a loudspeaker would be driven. The coupling of magnetic fields is described mathematically by Faraday's law of induction. A summary of the theory necessary for AFILs is included in BSI Specification BS7594, which is a guide to the design and installation of induction loops.

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