Position detection using a spaced apart array of magnetic field generators and plural sensing loop circuits offset from one another in the measurement direction
US6124708A · kind A · utility
70Cited by
4References
50Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 25, 1998 |
| Grant date | Sep 26, 2000 |
| Priority date | — |
| Expiry date | Sep 25, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/2053
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor head is provided for use in a apparatus for indicating the position of a movable member relative to a fixed member. It has two multi-turn sensor windings, each including repetitive pattern of series connected alternate sense loops of conductor. One sensor winding is in spatial phase quadrature with the other sensor winding, and the arrangement of the windings is such that the mid points of the sensor windings coincide. The sensor head is particularly suited for use in indicating the position of a movable member relative to a fixed member as it is relatively insensitive to longitudinal tilt relative to the other member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.