Laser doppler speed measuring apparatus
US5814732A · kind A · utility
8Cited by
3References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 5, 1996 |
| Grant date | Sep 29, 1998 |
| Priority date | — |
| Expiry date | Sep 5, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/497
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A laser Doppler speed measuring apparatus comprises a laser light source, a photodetector, an FM demodulator, and an integrated filter circuit. A selector switch is interposed between the FM demodulator and the integrated filter circuit so as to ensure switching between an output of the FM demodulator and a terminal for directly receiving an external signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.