Steel-products shape measurement device and steel-products shape correction device
US10828684B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2018 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | Jan 30, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B11/306
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Provided are a steel-shape measurement device and a steel-shape correction device. The steel-shape measurement device measures a distance to a detection spot group on a to-be-scanned surface of a steel product with a laser rangefinder 5A that measures the distance through scanning of a steel product S with a laser beam emitted from one laser light source 11 and redirected with a galvanometer mirror 13, and measures a shape of the steel product from obtained measured-distance data. The steel-shape measurement device includes an object having a 45°-0° diffuse reflectance of equal to or lower than 10% as a laser-beam absorber 8 at least one portion within an irradiation range irradiated with a regular-reflected laser beam from a to-be-scanned surface of the steel product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.