×

Magnetic guiding apparatus

  • US 7,345,865 B2
  • Filed: 04/23/2004
  • Issued: 03/18/2008
  • Est. Priority Date: 05/15/2003
  • Status: Expired due to Fees
First Claim
Patent Images

1. A magnetic guiding apparatus for guiding a moving member along a length of a sliding member by attracting a target disposed along the length of the sliding member by electromagnets provided on the moving member, said apparatus comprising:

  • a plurality of magnetic-flux detection means, on the guided moving member, for detecting a magnetic flux along the length of the target during movement of the moving member along the length of the sliding member;

    position measuring means for measuring a position of said plurality of magnetic-flux detection means on the guided moving member along the length of the sliding member;

    detection means for detecting a position of the magnetic flux peak along the length of the target, based on output of said plurality of magnetic-flux detection means and said position measuring means; and

    demagnetization means for performing demagnetization at the detected position of the magnetic flux peak.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×