Granatstein V L, Rhinewine M, Fitch A H
Appl Opt. 1973 Jul 1;12(7):1511-5. doi: 10.1364/AO.12.001511.
A measurement technique is discussed that allows for remote sensing of polluting gases that are emitted together with the water droplets in a steam plume. Infrared laser radiation is backscattered from the droplets. As wavelength of the radiation is varied, resonant absorption in the gases diminishes the backscatter signal; this may be quantitatively related the Concentration of specific gases. The backscatter arrangement makes possible the construction of a compact, single-ended, remote sensing instrument. Feasibility of this concept has been demonstrated in a laboratory experiment where a laser beam at 3.391 microm and 4.217 microm was scattered from a steam plume containing controlled amounts of CH(4) and CO(2).
本文讨论了一种测量技术，该技术能够对蒸汽羽流中与水滴一起排放的污染气体进行遥感监测。红外激光辐射从水滴上背向散射。随着辐射波长的变化，气体中的共振吸收会使背向散射信号减弱；这可以与特定气体的浓度建立定量关系。这种背向散射装置使得构建一种紧凑、单端的遥感仪器成为可能。在实验室实验中已证明了这一概念的可行性，在该实验中，波长为3.391微米和4.217微米的激光束从含有受控量CH(4)和CO(2)的蒸汽羽流中散射。
