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Indexed by:期刊论文

Date of Publication:2022-06-30

Journal:中国激光

Affiliation of Author(s):光电工程与仪器科学学院

Issue:5

Page Number:451-454

ISSN No.:0258-7025

Abstract: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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