Core-position sensor
US11561113B2 · kind B2 · utility
0Cited by
6References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2020 |
| Grant date | Jan 24, 2023 |
| Priority date | — |
| Expiry date | Sep 10, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/085
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A caliper-arm-position sensor comprising a differential variable reluctance transducer (DVRT) and circuits to drive the DVRT with a substantially sinusoidal signal and to sample a signal at the DVRT once per drive-signal cycle at a predetermined position in the drive-signal cycle is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.