Cryogenic liquid level sensor apparatus and method
US9074921B1 · kind B1 · utility
11Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2013 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | Feb 22, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/2921
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention proposed herein is a system and method for measuring the liquid level in a container that employs an optic fiber sensor which is heated using a simple power source and a wire and making an anemometry measurement. The heater wire is cycled between two levels of heat and the liquid level is obtained by measuring the heat transfer characteristics of the surrounding environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.