Reference electrode for high pressure liquid
US4659451A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 1985 |
| Grant date | Apr 21, 1987 |
| Priority date | — |
| Expiry date | Jul 26, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/301
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A reference electrode for use in testing liquid at a high pressure, has an internal liquid containing body having an internal liquid containing space therein and a liquid-junction one side of which is exposed to the high pressure liquid to be tested and the other side of which is exposed to the internal liquid contained in the internal liquid containing space. A reference electrode body surrounds the internal liquid containing body and defines a pressure compensating space between the internal liquid containing body and the inside of the reference electrode body, the pressure compensating space being open outwardly of the reference electrode body at a part there of which is exposed to the high pressure liquid to be tested when the reference electrode is in position for normal use, the pressure compensating space receiving the high pressure liquid to be tested therein. A flexible bellows is provided between the spaces and in liquid tight engagement with the internal liquid containing body for compensating for the pressure of the high pressure liquid to be tested on the internal liquid through the liquid-junction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.