Cloud height measuring means
US4643564A · kind A · utility
5Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 13, 1983 |
| Grant date | Feb 17, 1987 |
| Priority date | — |
| Expiry date | Oct 13, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A90/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for measuring cloud height, in which a train of light pulses is sent from a transmitter into the investigated air space. From each of a number of different height intervals, signals reflected towards a receiver are integrated and measured. The time, the pulse number, the pulse frequency and/or the pulse energy for each height interval are controlled with respect to the energy reflected and received in the receiver from underlying measuring intervals, thus obtaining compensation for losses in the energy of the light pulses in reaching the respective level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.