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Infrared laser-absorption sensing for combustion gases
Progress in Energy and Combustion Science ( IF 29.5 ) Pub Date : 2017-05-01 , DOI: 10.1016/j.pecs.2016.12.002
Christopher S. Goldenstein , R.Mitchell Spearrin , Jay. B. Jeffries , Ronald K. Hanson

Abstract Infrared laser-absorption spectroscopy (IR-LAS) sensors play an important role in diagnosing and characterizing a wide range of combustion systems. Of all the laser-diagnostic techniques, LAS is arguably the most versatile and quantitative, as it has been used extensively to provide quantitative, species-specific measurements of gas temperature, pressure, composition and velocity in both laboratory- and industrial-scale systems. Historically, most IR-LAS work has been conducted using tunable diode lasers; however, today’s researchers have access to a wide range of light sources that provide unique sensing capabilities and convenient access to nearly the entire IR spectrum (≈ 0.8 to 16 µm). In particular, the advent of room-temperature wavelength-tunable mid-infrared semiconductor lasers (e.g., interband- and quantum-cascade lasers) and hyperspectral light sources (e.g., MEMS VCSELs, Fourier-domain mode-locked lasers, dispersed supercontinuum, and frequency combs) has provided a number of unique capabilities that combustion researchers have exploited. The primary goals of this review paper are: (1) to document the recent development, application, and current capabilities of IR-LAS sensors for laboratory- and industrial-scale combustors and propulsion systems, (2) to elucidate the design and use of IR-LAS sensors for combustion gases through a discussion of the modern sensor-design process and state-of-the-art techniques, and (3) to highlight some of the remaining measurement opportunities, challenges, and needs. A thorough review and description of the fundamental spectroscopy governing the accuracy of such sensors, and recent findings and databases that enable improved modeling of molecular absorption spectra will also be provided.

中文翻译:

燃烧气体的红外激光吸收传感

摘要 红外激光吸收光谱 (IR-LAS) 传感器在诊断和表征各种燃烧系统方面发挥着重要作用。在所有激光诊断技术中,LAS 可以说是最通用和最定量的,因为它已被广泛用于在实验室和工业规模系统中提供气体温度、压力、成分和速度的定量、特定物种测量。历史上,大多数 IR-LAS 工作都是使用可调谐二极管激光器进行的。然而,今天的研究人员可以使用范围广泛的光源,这些光源提供独特的传感能力,并且可以方便地访问几乎整个 IR 光谱(≈ 0.8 至 16 µm)。特别是,室温波长可调的中红外半导体激光器(例如,带间和量子级联激光器)和高光谱光源(例如,MEMS VCSEL、傅立叶域锁模激光器、分散超连续谱和频率梳)提供了许多燃烧研究人员已经开发的独特功能。本评论论文的主要目标是:(1) 记录用于实验室和工业规模燃烧器和推进系统的 IR-LAS 传感器的最新发展、应用和当前能力,(2) 阐明设计和使用通过讨论现代传感器设计过程和最先进的技术,以及 (3) 强调一些剩余的测量机会、挑战和需求,用于燃烧气体的 IR-LAS 传感器。对控制此类传感器精度的基本光谱学进行彻底审查和描述,
更新日期:2017-05-01
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