Device for measuring wind speed
US9354315B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2010 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | Oct 11, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2015/1486
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device comprises: an emitting element for emitting a laser beam, referred to as an emitted beam; a focusing element for focusing the emitted beam at a predetermined focal distance (D); a receiving element for receiving the emitted beam after being reflected by a particle in the air (18), referred to as a reflected beam; a transmitting element for transmitting the signal of interference occurring between the emitted beam and the reflected beam to a signal processor in order to deduce the speed of the particle therefrom. The emitting element includes a laser diode and the receiving element is combined with the laser diode by self-mixing. The focal distance is between 5 cm and 2 m.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.