Level guage apparatus
US4786846A · kind A · utility
20Cited by
3References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 22, 1987 |
| Grant date | Nov 22, 1988 |
| Priority date | — |
| Expiry date | Jun 22, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/0023
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A self-balancing type level gauge apparatus is disclosed, in which the change of a magnetic flux generated between coupling outer and inner magnet rings on the basis of a displacement between the coupling outer and inner magnet rings due to the displacement of a liquid level to be gauged is converted to an electrical signal which is used to gauge the liquid level to thereby reduce the mechanical portion which causes a mechanical friction so that the level gauge apparatus can be improved considerably in level gauging detection sensitivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.