Adjustable interferometer for laser ultrasonic measurement
US8134715B2 · kind B2 · utility
0Cited by
8References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 2009 |
| Grant date | Mar 13, 2012 |
| Priority date | — |
| Expiry date | Jun 16, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/0231
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An interferometer includes a cavity including a pair of mirrors defining a cavity length. An input beam and a counter-propagating reference beam are directed into the cavity. The interferometer generates a feedback control signal and an ultrasound signal for optimal performance and measurement of a target, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.