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EMULSION

The oxide coating on MAGNETIC TAPE, composed of microscopic magnetizable particles suspended on a plastic film base or backing, such as acetate, polyester or mylar. During recording, the particles are re-aligned in correspondence with the input signal, and later during playback, these particles (also called domains) induce a similar current which reproduces the original signal. Tape without emulsion is called leader tape.

See: BULK ERASER, DEGAUSS, DROPOUT, TAPE RECORDER.

The structure of magnetic recording tape.

 

Realignment of magnetized particles during the recording process.


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