Face lighting for edge location in catalytic converter inspection
US7283224B1 · kind B1 · utility
13Cited by
2References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 2004 |
| Grant date | Oct 16, 2007 |
| Priority date | — |
| Expiry date | Mar 21, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/95692
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and system for inspecting an object having a planar face with surface variations such as catalytic converters. Light sources are placed above the planar face of the object for lighting the face of the object. At least one obscuration is positioned proximate the planar face of the object to limit the lighting of the planar face of the object to thereby provide a low depth field of lighting. The planar face of the object is imaged to provide an image representation of the planar face of the object. The image representation of the planar face of the object is evaluated to characterize edge chip damage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.