System for detecting and locating surface discontinuity by a light beam
US4413910A · kind A · utility
9Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 13, 1981 |
| Grant date | Nov 8, 1983 |
| Priority date | — |
| Expiry date | Feb 13, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/305
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a system for detecting and locating surface discontinuity by a light beam; it is more particularly intended for detecting any discontinuity forming a line on this surface, or any discontinuity forming two opposite lines on this surface. In the latter case, this discontinuity may, for example, be the join defined by the opposite edges of two metal sheets to be welded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.