Multi-spectrum transmission type atmospheric extinction coefficient measuring device and calibration method

• Main Authors: HUANG WENXIN, YANG BAOYUN, LI XIN, CHEN HONGYAO, SI XIAOLONG, WANG JIXIANG, ZHANG LIMING, LI JIAWEI
• Format: Patent
• Language: Chinese; English
• Published: 14.04.2023
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a multispectral transmission-type atmospheric extinction coefficient measuring device and a calibration method. The multispectral transmission-type atmospheric extinction coefficient measuring device comprises a light source emitting unit and a detection receiving unit. The light source emitting unit provides approximately parallel stable and uniform radiation output and comprises an active light source assembly and a dark target assembly. The active light source assembly comprises an active light source, a focusing projection optical assembly and a chopper; the dark target assembly comprises a dark box; the active light source assembly is placed in the camera obscura; the active light source is a frequently working light source, and the camera obscura plays a role in calibration. The detection receiving unit detects and receives signals emitted by the light source unit and comprises a telescope, a beam splitter prism, an optical camera and a photodiode; the optical camera is used for