Lidar droplet size monitor for in-flight measurement of aircraft engine exhaust contrails, droplets and aerosols
US5546183A · kind A · utility
35Cited by
10References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 1994 |
| Grant date | Aug 13, 1996 |
| Priority date | — |
| Expiry date | Oct 12, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N15/0205
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A lidar system which utilizes optical backscatter and extinction to determine the size of particles inside the exhaust plume of an aircraft at a distance of several hundred meters behind the aircraft. The system transmits a laser beam through the exhaust plume of the aircraft, where it is reflected by the particles contained in the exhaust plume. The reflected light is detected by a receiver, where it is processed by a computer to calculate the size of the particles in the exhaust plume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.