Oil deterioration detector
US5523692A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1994 |
| Grant date | Jun 4, 1996 |
| Priority date | — |
| Expiry date | Mar 22, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/4167
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An oil deterioration detector comprising a sensitive electrode whose electric potential varies in response to acidity and/or basicity of oil to be measured, and a reference electrode associated with this sensitive electrode. An electrically conductive housing accommodates the sensitive electrode and the reference electrode together with the oil. A potential difference detector detects oil deterioration by measuring a potential difference between the sensitive electrode and the reference electrode. And, an insulating member is interposed between these electrodes and the electrically conductive housing for electrically insulating these electrodes from the electrically conductive housing. The reference electrode is grounded together with the electrically conductive housing. An insulating, hydrophilic porous member would be interposed between the sensitive electrode and the reference electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.