Detector system for detecting the occurrence of welding
US5248880A · kind A · utility
47Cited by
23References
44Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 26, 1991 |
| Grant date | Sep 28, 1993 |
| Priority date | — |
| Expiry date | Dec 26, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2001/0276
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor circuit for detecting light hazards or bright light sources that will cause discomfort. The sensor and sensor electronics which provide a wide sensitivity range which is fully automatically adjustable, and which has the ability to detect point sources of light. The sensor further has the ability to distinguish low power stable light generated from a small welding arc from bright ambient light or even direct sunlight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.