Systems and methods for inspecting coatings, surfaces and interfaces
US7220966B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2004 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | Apr 8, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D5/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for detecting defects in paint coatings includes a temperature manipulation apparatus configured to change the temperature of a surface and a coating applied to the surface. The system may further include an infrared sensor for measuring the change in temperature (over time) of the surface and coating and a processor to compare the measured change in temperature of the surface and coating to an expected change of temperature (over time) in order to determine anomalies in the coatings. A self-referencing method of determining defects is also disclosed, wherein surrounding pixels are utilized as a reference in the detection process for calculating the change in temperature of each pixel. In addition, application of the inventive aspects to inspection of adhesion interfaces is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.