Laser radar system apparatus for multi-wavelength measurement of atmospheric carbon dioxide concentration and vertical aerosol profile

US11397149B2 · kind B2 · utility

Assignee

• Shanghai Institute of Optics And Fine Mechanics, Chinese Academy of Sciences · CN

Inventors

• Weibiao Chen · Shanghai, CN
• Yadan Zhu · Shanghai, CN
• Jiqiao Liu · Shanghai, CN
• Xia Hou · Shanghai, CN
• Xiaolei Zhu · 安丰镇, CN
• Xiuhua Ma · Shanghai, CN
• Huaguo Zang · Shanghai, CN
• Rui Li · Nanhu, CN

Key dates

• Filing date: Jul 23, 2019
• Grant date: Jul 26, 2022
• Expiry date: Jul 23, 2039

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02A90/10
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A laser radar system apparatus for the multi-wavelength measurement of the atmospheric carbon dioxide concentration and a vertical aerosol profile, including: a laser transmitting unit; a dual-pulse laser capable of simultaneously transmitting laser having three wavelengths, i.e., 1572 nm, 1064 nm, and 532 nm; a transmitting beam expander; a receiving telescope system; a visual axis monitoring module; a photoelectric detection unit; and a data acquisition and processing unit. The laser that simultaneously outputs laser having three wavelengths is used in a laser radar system, and an optical differential absorption method and a high spectral resolution detection method are used, such that the atmospheric carbon dioxide concentration and the vertical aerosol profile can be measured simultaneously and high-precision aerosol monitoring is implemented during the high-precision obtaining of the concentration of the greenhouse gas carbon dioxide.