Method of measuring stress in a material
US4080836A · kind A · utility
25Cited by
5References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1977 |
| Grant date | Mar 28, 1978 |
| Priority date | — |
| Expiry date | Mar 7, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/0422
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Stress in a material is measured using electromagnetically generated, transverse elastic waves. A correlation is known to exist between the difference in velocity of orthogonally polarized transverse waves in the type material being measured and stress in the material. An electromagnetic transducer is used to generate orthogonally polarized waves traveling through the part at different velocities as a result of anisotropic stress in the part. The difference in velocity between the polarized waves is measured and compared to the correlation to obtain the stress existing in the part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.