Method and apparatus for determining hydride content in a measurement object
US6541964B1 · kind B1 · utility
6Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2001 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | Jun 27, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/9046
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention concerns a method and apparatus for determining the hydride content in an electrically conductive substrate by generating a first electromagnetic alternating field that at least partly penetrates the substrate which in turn produces a second alternating field that reacts with the first field. The first field is set at at least two different frequencies and measurement at the frequencies of the combined alternating field formed by the interaction of the first and second fields determines the hydride content in the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.