Apparatus and method for on-line detecting welding part of strip
US8149409B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 2006 |
| Grant date | Apr 3, 2012 |
| Priority date | — |
| Expiry date | Jun 21, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/8918
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is provided an on-line detection system and method for a weld of a steel strip, which can emit a laser beam onto the surface of a steel strip moving at a high speed and measure the reflectivity of the laser beam reflecting from the same, thereby detecting the weld of the steel strip easily on-line. In the on-line detection system, reflectivity measuring means emits a laser beam onto a moving steel strip and continuously measuring the reflectivity of the laser beam returning from the surface of the steel strip, and signal processing means detects a weld of the steel strip based on change in the reflectivity measured on the weld.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.