CO2 concentration detection system for seed respiration

doi:10.3788/OPE.20192706.1397

CIOMP OpenIR

	CO2 concentration detection system for seed respiration
	L.-Q.Jia; H.-N.Qi; W.-J.Hu; G.-W.Zhao; R.-F.Kan
	2019
发表期刊	Guangxue Jingmi Gongcheng/Optics and Precision Engineering
ISSN	1004924X
卷号	27 期号:6 页码:1397-1404
摘要	To address the problem of low detection accuracy in the traditional method of seed-breathing CO2 concentration measurement, a seed-breathing measurement system based on tunable diode laser absorption spectroscopic technology was proposed to meet the needs of seed-breathing CO2 concentration measurements. First, the system was designed to consist of a seed-breathing container, a distributed feedback laser and control circuit, photoelectric conversion and an amplification circuit, a data acquisition circuit, and upper computer software. The space volume of the seed breathing container was 1.5 L, the laser source was in the 2 004-nm band, and the light path of the multiple reflection cell was 16 m. Then, based on Lambert's law and wavelength modulated absorption spectroscopy, the concentration of CO2 produced during seed respiration could be retrieved in real time using second harmonics. The stable repeatability of the CO2 concentration measurement in seed respiration is 0.033%, the linear fitting degree of CO2 concentration is 0.999 38, and the detection limit of CO2 concentration is 1.710-6. The change curve of 20-g maize seed respiration is obtained by testing waxy maize seeds. The amount of change in waxy maize seed respiration after 12 h is 2 750.510-6, and the respiration rate is 229.210-6/h. Experimental results show that the system can solve the inability for continuous measurement of CO2 concentration in seed respiration and the low precision of concentration detection. 2019, Science Press. All right reserved.
关键词	Carbon dioxide,Absorption spectroscopy,Computer control systems,Computer software,Containers,Data acquisition
DOI	10.3788/OPE.20192706.1397
URL	查看原文
收录类别	EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/63309
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	L.-Q.Jia,H.-N.Qi,W.-J.Hu,et al. CO2 concentration detection system for seed respiration[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2019,27(6):1397-1404.
APA	L.-Q.Jia,H.-N.Qi,W.-J.Hu,G.-W.Zhao,&R.-F.Kan.(2019).CO2 concentration detection system for seed respiration.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,27(6),1397-1404.
MLA	L.-Q.Jia,et al."CO2 concentration detection system for seed respiration".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 27.6(2019):1397-1404.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
CO2 concentration de（2467KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载