High-speed, 3-D method and system for optically measuring a geometric dimension of manufactured parts
US8896844B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2012 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | Dec 14, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/8887
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A high-speed, 3-D method and system for optically measuring a geometric dimension of manufactured parts such as cartridge cases are provided. The method includes consecutively transferring the parts so that the parts travel along a path which extends to a vision station at which each part has a predetermined position and orientation for optical measuring. A line of radiation having a predetermined orientation is projected onto spaced apart end surfaces of the part to obtain reflected line segments of radiation from the end surfaces of the part. The reflected line segments of radiation are detected at one or more image planes to obtain electrical signals and the electrical signals are processed to determine the geometric dimension such as primer pocket depth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.