Linear differential transformer with constant amplitude and variable phase output
US4437019A · kind A · utility
6Cited by
2References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 7, 1983 |
| Grant date | Mar 13, 1984 |
| Priority date | — |
| Expiry date | Feb 7, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/2291
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A differential transformer is provided comprising an elongated secondary winding of uniform turn density. First and second transformer primary windings are wound about the secondary winding. The primary windings lie generally in parallel spaced apart planes which cut the axis of the secondary winding at an angle other than 90.degree.. A core of magnetic material is movable linearly along a path parallel to the secondary winding axis and serves to couple the primary and secondary windings. The primary windings are connected to AC sources which are 90.degree. out of phase with each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.