Electromagnetic power generating type rotation sensor
US4804911A · kind A · utility
16Cited by
5References
5Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | May 29, 1987 |
| Grant date | Feb 14, 1989 |
| Priority date | — |
| Expiry date | May 29, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P1/026
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An electromagnetic power generating type rotation sensor has a magnetic pole which is divided into an inner magnetic pole piece and an outer magnetic pole piece (3a, 13a) located in a position close to an outer peripheral part or a side part of a magnetic rotator. The inner magnetic pole piece (3b, 13b) is located adjacent to the outer magnetic pole piece but inside the sensor so as not to be exposed to the external environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.