System and apparatus for monitoring concentration of greenhouse gas
US8614794B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2011 |
| Grant date | Dec 24, 2013 |
| Priority date | — |
| Expiry date | Mar 10, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/3513
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
One or more embodiments of the present invention pertain to a system, method, and apparatus that accurately measures concentration of a greenhouse gas in narrow atmospheric columns above multiple sites utilizing a network of autonomous low-cost beacons that turn on for short unannounced time intervals and point to a receiving satellite. For example, each beacon can activate for short time intervals and transmit a laser beam at eye-safe low transmission power levels to a receiving satellite. The receiving satellite includes a sensor configured to receive the laser beam from one or more activated beacon and generate raw greenhouse gas concentration data based on measurement of the received laser beam intensity at selected wavelengths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.