Method and apparatus for profile scanning
US4122525A · kind A · utility
25Cited by
9References
48Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 12, 1976 |
| Grant date | Oct 24, 1978 |
| Priority date | — |
| Expiry date | Jul 12, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B11/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Inspection and verification of configuration of a bent tube is achieved by placing the tube upon a conveyor that moves past a pair of mutually orthogonal optical scanners. Interruptions of a light beam at boundaries of the passing tube are used together with the known beam scan pattern and the known position of the conveyor in the course of its movement to generate signals that define coordinates of vertical and horizontal projections of the tube boundary. From these coordinates the desired tube data can be determined and compared with a reference, thereby comparing tube configuration with a reference configuration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.