Optical remote sensing of atmospheric pollutants using an AOTF based imager
Document ID: 341
Mathur, Savyasachee L.1
Balsiger, Franz1
Philbrick, C. Russell1
Pustovoit, Valadislav I2
1 The Pennsylvania State University, Department of Electrical Engineering, University Park, PA, U.S.A
2 Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Moscow, Russia
Introduction
Environmental pollution from industry and automobiles has been a global problem for decades. While regulations are demanding strict emissions standards from auto manufacturers and factories, increasingly sophisticated pollution monitoring techniques are being deployed every day. There are increasing demands for systems capable of pollution mapping at a reasonable installation cost as well as ease, without compromising the quality of measurement. The primary species of interest are sulfur dioxide (S02) and nitrogen dioxide (N02). In the past, many lidar systems have been developed to monitor these species. A lidar design, in general, involves an elaborate optical design for the transmitter, and, more importantly, the detection system. Recently, through the advancement of the acousto-optic devices, it is possible to design more versatile detector systems. This paper proposes a system design that is versatile, i.e. capable of making multiple wavelength measurements, and compact. The prototype is designed around an Acousto-Optic Tunable Filter (AOTF) and CCD imagers.
| Citation: | "Optical remote sensing of atmospheric pollutants using an AOTF based imager", Mathur, S. L., F. Balsiger, C. R. Philbrick, V. I. Pustovoit, The Pennsylvania State University, April 1996, pp. 1 - 13 |