Optical fibre probe for photoacoustic material analysis
US6839496B1 · kind B1 · utility
186Cited by
7References
6Claims
0Family size
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Key dates
| Filing date | Jun 23, 2000 |
| Grant date | Jan 4, 2005 |
| Priority date | — |
| Expiry date | Mar 5, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0059
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A probe comprises an excitation source and a double-core optical fiber. A pulsed laser signal (20) of the excitation sources supplied to the outer core (42) at one end of the optical fiber. The other end is provided with an interferometer film (18). An excitation signal (22) produced in the sample (10) modulates the thickness of the film (18). This provides an interferometer signal (26, 28) detected from the inner core (40).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.