Techniques for converting magnetic fields to electrical signals?

Discussion in 'Physics & Math' started by grazzhoppa, Jun 27, 2009.

  1. grazzhoppa yawwn Valued Senior Member

    What type of techniques are there to detect and convert a magnetic medium into an electrical signal?

    For example: what are the physics behind the head of a hard disk drive that "reads" the magnetics of the disk platters and ultimately outputs electrical signals based on the magnetics it read? What is happening when the head "reads" the magnetic platter and how does it happen?

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