Laser & Optoelectronics Progress, Volume. 49, Issue 10, 100103(2012)
A New Method for Atmospheric CO2 Balloonsonde Measurement
A new method is presented for atmospheric CO2 balloonsonde measurement. Based on Beer-Bouguer-Lambert law and non-dispersed infrared (NDIR) technique, an experimental device is designed and developed. A infrared LED is used to produce suitable light source, and infrared LED detectors and a proper electronic circuit designed are used to transform light intensity into electrical signals in the experimental device. Calibration method for CO2 measurement is also presented. A comparison experiment is carried out for continuous 24 h on ground with EC9820 analyzer. Result shows that measurement error ranges from -10×10-6 to 10×10-6, and standard deviation is 3.76×10-6, which basically satisfies the precision demand for atmospheric CO2 measurement. The feasibility of CO2 measurement has been validated.
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Feng Lin, Hu Shunxing, Huang Jian, Yuan Ke′e, Shao Shisheng, Xu Zhihai, Cao Kaifa, Meng Xiangqian, Lü Weiyu, Yu Haili, Zhang Shiguo. A New Method for Atmospheric CO2 Balloonsonde Measurement[J]. Laser & Optoelectronics Progress, 2012, 49(10): 100103
Category: Atmospheric Optics and Oceanic Optics
Received: May. 2, 2012
Accepted: --
Published Online: Aug. 22, 2012
The Author Email: Lin Feng (fenglin@aiofm.ac.cn)