Rotary variable differential transformer with substantially linear output
US4347491A · kind A · utility
5Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 2, 1981 |
| Grant date | Aug 31, 1982 |
| Priority date | — |
| Expiry date | Feb 2, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S241/606
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rotary variable differential transformer is provided having a substantially linear output over .+-.35.degree. of rotation of the rotor. Two secondary windings in series opposition extend over adjacent nominal quadrants of the stator. A primary winding extends about substantially half the stator. The rotor includes two diametrically opposed pole pieces each defining arcuate segments. One segment is approximately one half the arcuate length spanned by the secondaries and the other segment one third the arcuate length of the remainder of the stator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.