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论文类型：期刊论文

发表时间：2022-06-30

发表刊物：中国激光

所属单位：光电工程与仪器科学学院

期号：5

页面范围：451-454

ISSN号：0258-7025

摘要：Laser based photoacoustic technique applied to trace gas measurement has proved to be a high sensitive method. The implementation of the computer control and data processing system makes the multi-component analysis and long-time continuous measurement of the photoacoustic spectrometer available, and it also increases the sensitivity and reliability of the spectrometer. System performance measurement shows that the detect limit for ethylene concentration of 14×10-12 and the accuracy of 2% are reachable. As an application of the system to biological study, an experiment on monitoring of the ethylene production from apple and cherry tomato fruit in anoxia and post anoxia condition has been carried out.

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