Cracking detection system and cracking detection method
US9976968B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 17, 2014 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | May 24, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/8893
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is provided a crack detection system in which a crack can be detected from a strain distribution of a part to be detected of an object. After taking the image of the part to be detected of the detection object by the imaging unit, the heat is applied by the heating unit. Furthermore, image of the part to be detected are taken again and an image analysis unit analyzes the images before and after applying the heat to acquire a strain distribution of the part to be detected, so that the crack can be detected based on difference in a state of strain between a place where the crack exist and the other place. Therefore, taking the images of the part to be detected including its coating layer enables the analysis to progress without removing the coating layer to detect the crack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.