Ethylene sensor for plant maturity monitoring based on photoacoustic spectroscopoy

Qixuan Zhou; Guofei Chen; Aijun Zen

doi:10.1117/12.2616500

8 July 2022 Ethylene sensor for plant maturity monitoring based on photoacoustic spectroscopoy

Qixuan Zhou, Guofei Chen, Aijun Zen

Proceedings Volume 12281, 2021 International Conference on Optical Instruments and Technology: Optoelectronic Imaging/Spectroscopy and Signal Processing Technology; 1228104 (2022) https://doi.org/10.1117/12.2616500
Event: 2021 International Conference on Optical Instruments and Technology, 2022, Online Only

Abstract

Ethylene is a gaseous hormone involved in the ripening process of various plants. Monitoring ethylene concentration is helpful to understand the ripening situation of plants, which is conducive to the harvesting, storage and transportation of fruits and other crops. Therefore, it is of great significance to apply the detection technology of ethylene concentration to the monitoring of plant ripening process. In this paper, the feasibility of applying photoacoustic spectrum gas detection technology to the monitoring of plant maturation process is explored, and an experimental device for ethylene concentration detection is designed. The modulated infrared light source and non resonant photoacoustic cell are used to produce photoacoustic effect on the ethylene in the mixed gas to be measured, and the weak signal collected by the microphone is extracted by phase-locked amplification technology. By using this device, ppm level of the detection of ethylene concentration in the mixed gas to be measured can be realized.

Citation Download Citation

Qixuan Zhou, Guofei Chen, and Aijun Zen "Ethylene sensor for plant maturity monitoring based on photoacoustic spectroscopoy", Proc. SPIE 12281, 2021 International Conference on Optical Instruments and Technology: Optoelectronic Imaging/Spectroscopy and Signal Processing Technology, 1228104 (8 July 2022); https://doi.org/10.1117/12.2616500

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