Patent · US Expired

Magnetic position sensing techniques

US6486655B1 · kind B1 · utility

18Cited by
6References
9Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 7, 2000
Grant dateNov 26, 2002
Priority date—
Expiry dateDec 7, 2020

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01V3/08
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A method of sensing the position of a first element with respect to a second element is disclosed, the first element being movable with respect to the second. The method comprises: (a) fixing a first magnetic marker to said first element; (b) fixing a second magnetic marker to said second element; (c) sensing the positions of the two markers by a remote magnetic sensing technique. Optionally, a third magnetic marker may be used, the second and third markers then preferably being located at the extremes of travel of said first element. The method may be used to determine linear or angular relationships.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.