Measurement of deformation
US4474466A · kind A · utility
10Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 1982 |
| Grant date | Oct 2, 1984 |
| Priority date | — |
| Expiry date | Mar 9, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B11/165
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a strain sensing system in which a strained grating is illuminated with a pair of beams chosen from three possible beams to sense strain in two dimensions, an arrangement is disclosed of two beam splitters, as least one plane mirror, and three tilted mirrors, all fixed to a support plate and which can supply the three required illuminating beams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.