The development and applications of photoacoustic spectroscopy gas sensors is present.The theory of the photoacoustic gas sensors and the advantages of different photoacoustic sensors are discussed.

• 摘要介绍光声光谱气体传感器的发展及应用意义，根据气体光声效应讨论了光声气体传感器的工作原理，详细分析了多种不同结构传感器的原理及优缺点。