Device and method for the non-invasive detection and measurement of the properties of a medium
US7710573B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 18, 2004 |
| Grant date | May 4, 2010 |
| Priority date | — |
| Expiry date | Nov 1, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B2290/70
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a device useful for non-invasive detection of the properties of a medium by means of interferometry. The device comprises an optical source which is used for illuminating a zone of the medium that is to be probed with a light beam, and an interferometer for splitting the light beam into a reference beam and a probe beam. The interferometer has a cutoff frequency for the automatic control of respective path lengths of the reference beam and of the probe beam. The device also comprises scanning means which, together with the probe beam, are used to scan the zone to be probed at an image acquisition frequency greater than the cutoff frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.