【摘要】 痕量气体检测技术在污染监测、工业生产、国防安全等领域均发挥了重要的作用。石英增强光声光谱技术(QEPAS)具有抗干扰能力强、体积小、灵敏度高(ppb量级)等特点,是痕量气体检测技术的研究热点之一,实现了对多种有毒气体的高灵敏度检测。该文叙述了QEPAS技术原理,回顾了5种不同结构QEPAS系统的发展情况及进展,并对该技术的研究前景进行了展望。更多还原

【Abstract】 Trace gas detection technology is an important approach widely used in the field of air pollution monitoring, industrial production and national security. Quartz enhanced photoacoustic spectroscopy(QEPAS), a highlighted focus of trace gas detection technology, has the potential of toxic and harmful gas detection due to its features of strong anti-interference, small scale and high sensibility. This paper briefly summarizes the fundamentals of QEPAS technology, presents the main performance of QEPAS technology developed in the recent years, and finally discusses the prospects of QEPAS technology according to the current requirement.更多还原