Process and device for inspecting control rod clusters for nuclear fuel assemblies
US4741878A · kind A · utility
18Cited by
9References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1986 |
| Grant date | May 3, 1988 |
| Priority date | — |
| Expiry date | Jul 29, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A device for inspecting the rods of a cluster which is insertable into the core of a nuclear reactor has a body with a guide for indexing the cluster in m different angular positions. The body includes a support plate which is traversed by the rods during movement in the body and carries n/m eddy current coils (n being the total number of rods in the group). The device is associated with a data processor and with ultrasonic and optical examination systems. Optical examination is carried out on one rod at a time while it is moved longitudinally through the body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.