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Measurement apparatus including a track for a measurement scale and apparatus for tensioning the scale

  • US 6,772,531 B1
  • Filed: 11/27/2000
  • Issued: 08/10/2004
  • Est. Priority Date: 11/30/1999
  • Status: Expired due to Fees
First Claim
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1. A measurement apparatus comprising:

  • a measurement scale;

    a readhead relatively movable along the scale for reading the scale; and

    a scale track holding the scale, the track having magnetisable material for causing magnetic attraction force between the scale and the track, the scale being spaced from the magnetisable material, the magnetic attraction force between the scale and the magnetisable material allowing relative movement between the scale and the track.

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