Hall effect position sensor for a railway vehicle axle
US4943772A · kind A · utility
9Cited by
1References
5Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 18, 1989 |
| Grant date | Jul 24, 1990 |
| Priority date | — |
| Expiry date | Apr 18, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A position sensor for measuring the separation, in a givne direction (Oy), between a first part such as a datum element of a railway vehicle axle and a fixed second part such as a rail on which said axles runs, includes magnets (11, 12) for producing a magnetic field above the second part (10) and Hall effect probes (15) for measuring the value of the component of the field in said given direction (Oy) with variation in that value being proportional to the separation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.