Nondestructive testing system having automatic set-up means
US4351031A · kind A · utility
8Cited by
9References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1980 |
| Grant date | Sep 21, 1982 |
| Priority date | — |
| Expiry date | Nov 7, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/9046
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An eddy current type of nondestructive testing instrument is disclosed in which the operating frequency is automatically adjusted in accordance with a comparison of output signals obtained in scanning operations in which the frequency is adjusted over its range. The system may be used, for example, in providing lift-off compensation for conductivity measurements or flaw detection or it may be used for sorting of parts of different characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.