Level measurement of process fluid using a remote seal
US9109937B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2012 |
| Grant date | Aug 18, 2015 |
| Priority date | — |
| Expiry date | Sep 9, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L7/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus is provided for measuring level of a process fluid in a container opening. The apparatus includes a remote seal configured to be inserted into the container through an opening and configured to receive a pressure related to the level of process fluid in the container. A capillary tube filled with a fill fluid extends from the remote seal to the opening and is configured to convey the pressure therebetween. A pressure sensor coupled to the capillary tube senses the pressure from the capillary tube and responsively determines the level of the process fluid in the container. The remote seal includes a bellows portion arranged to isolate the process fluid from the fill fluid in the capillary tube and convey the pressure therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.