Electrical linear position transducer with silicon steel foil shield surrounding transducer coil
US5068607A · kind A · utility
5Cited by
1References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 1990 |
| Grant date | Nov 26, 1991 |
| Priority date | — |
| Expiry date | Jun 22, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B7/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A new linear position transducer is disclosed which is substantially identical to the transducer described and illustrated in U.S. Pat. No. 4,667,158, except that the tubular layer contained between the coil and the outer shield comprises a silicon steel foil wrapped around the coil which has the effect of reducing the reluctance of this space to a low value. An electrical insulator is applied to one side of the silicon steel foil to prevent the creation of a current path between the coil and the outer shield of the transducer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.