Method for speed measurement according to the laser-doppler-principle
US6064472A · kind A · utility
5Cited by
6References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 14, 1997 |
| Grant date | May 16, 2000 |
| Priority date | — |
| Expiry date | Oct 14, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/4811
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for speed measurement according to the laser-Doppler-principle with which with the help of a beam splitter the light beam of a laser is converted into two part beams crossing on or in the measured object and with the help of an optical receiver the spectral maximum of the intensity modulation of the reflected light is measured. A Koster prism is used as a beam splitter such that the part beams formed intersect at the desired angle on or in the measured object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.