Leak detector
US4897551A · kind A · utility
30Cited by
6References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1988 |
| Grant date | Jan 30, 1990 |
| Priority date | — |
| Expiry date | Apr 11, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/6484
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A leak detector for monitoring, in an area being investigated, the presence of a liquid having a characteristic fluorescence spectrum. The leak detector includes a radiation source, with the radiation provided to the area being investigated. The detector also includes a collector for collecting radiation, in the fluorescence emission band of the liquid being monitored, emitted from the area being investigated. The presence of this liquid is sensed by detection of a threshold level of collected radiation. The size of a stain of the liquid relative to the size of the field of view of the collector is then determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.