Contactless motion sensor
US4985691A · kind A · utility
29Cited by
42References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 1988 |
| Grant date | Jan 15, 1991 |
| Priority date | — |
| Expiry date | Oct 11, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/252
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A motion and position sensor includes a stationary member having active conductors that carry energizing power and sensing conductors that are electromagnetically coupled by a movable member to generate signals in the sensing conductors that are representative of the position of the movable member. The movable member is contactless and therefore requires no electrical connection to any other component. Thus, frictional reactance torque and electromagnetically generated torque are reduced to a minimum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.