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采用虚拟仪器的种子呼吸 测量系统设计

Design of seed respiration measurement system using virtual instrument

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摘要

在种子呼吸 CO2检测系统中, 为了解决传统方法无法对种子呼吸 CO2浓度实时测量的难题, 本文根据种子呼吸 CO2的特点, 基于可调谐二极管激光吸收光谱 (TDLAS)技术设计了基于虚拟仪器 LabVIEW的种子呼吸检测系统。该系统主要包括激光光源及其控制器、基于多次反射池结构的种子呼吸容器、数据采集模块。上位机软件中主要设置了数据采集、信号处理、浓度反演等功能模块, 其中浓度反演采用正交矢量的锁相放大算法, 避免了参考信号与待测信号相位差产生的误差。实验结果表明, 采用虚拟仪器软件实现的种子呼吸 CO2检测系统, 能够有效检测种子呼吸变化, 抗干扰性和稳定性都较优, 为后续的实验开展研发奠定了基础。

Abstract

In the seed breathing CO2 detection system, the traditional method cannot measure the concentration of CO2 in the seed breathing in real time. According to the characteristics of seed breathing CO2, a seed breathing detection system based on virtual instrument LabVIEW is designed based on tunable diode laser absorption spec-troscopy (TDLAS). The system mainly includes laser light source and its controller, seed breathing container based on multiple reflecting pool structure. The upper computer software is mainly set with data acquisition, signal processing, concentration inversion and other functional modules, in which the concentration inversion uses the or-thogonal vector phase-locked amplification algorithm to avoid the error caused by the phase difference between the reference signal and the signal to be measured. The experimental results show that the CO2 detection system for seed respiration implemented by virtual instrument software can effectively detect the change of seed respiration, and has good anti-interference and stability, which lays a foundation for the subsequent experimental research and development.

Newport宣传-MKS新实验室计划
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中图分类号:O346

DOI:10.12086/oee.2019.190051

所属栏目:科研论文

基金项目:国家自然科学基金青年基金资助项目 (31701512); 国家自然科学基金资助项目 (61772198); 浙江省重点研发项目 (2019C02013); 湖州市自然科学基金资助项目 (2017YZ03)

收稿日期:2019-01-29

修改稿日期:2019-05-10

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作者单位    点击查看

贾良权:湖州师范学院信息工程学院, 浙江湖州 313000
祁亨年:湖州师范学院信息工程学院, 浙江湖州 313000
赵光武:浙江农林大学农业与食品科学学院, 浙江杭州 311300
胡文军:湖州师范学院信息工程学院, 浙江湖州 313000
高璐:湖州师范学院信息工程学院, 浙江湖州 313000
许琴:湖州师范学院信息工程学院, 浙江湖州 313000

联系人作者:贾良权(02426@zjhu.edu.cn)

备注:贾良权(1983-), 男, 博士, 讲师, 主要从事 TDLAS技术及其应用的研究。

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引用该论文

Jia Liangquan,Qi Hengnian,Zhao Guangwu,Hu Wenjun,Gao Lu,Xu Qin. Design of seed respiration measurement system using virtual instrument[J]. Opto-Electronic Engineering, 2019, 46(11): 190051

贾良权,祁亨年,赵光武,胡文军,高璐,许琴. 采用虚拟仪器的种子呼吸 测量系统设计[J]. 光电工程, 2019, 46(11): 190051

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