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工程设计学报  2022, Vol. 29 Issue (2): 231-236    DOI: 10.3785/j.issn.1006-754X.2022.00.029
整机和系统设计     
基于TDLAS的批量种子活力检测装置设计
徐云杰1,2(),沈俞1,胡飞1,贾良权1,祁亨年1()
1.湖州师范学院 工学院,浙江 湖州 313000
2.湖州市机械工程学会,浙江 湖州 313000
Design of vigor detection device for batch seeds based on TDLAS
Yun-jie XU1,2(),Yu SHEN1,Fei HU1,Liang-quan JIA1,Heng-nian QI1()
1.School of Engineering, Huzhou University, Huzhou 313000, China
2.Huzhou Mechanical Engineering Society, Huzhou 313000, China
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摘要:

针对我国缺乏对批量种子活力检测装置的研究,以及传统检测方法可能会对种子样品造成不可逆损伤的问题,提出了一种通过可调谐半导体激光吸收光谱(tunable diode laser absorption spectroscopy, TDLAS)技术检测种子呼吸强度来判定其活力等级的无损检测方法,并设计了相应的检测装置,以实现对种子活力的批量检测。首先,从整体上设计了批量种子活力检测装置的结构,确定了上料—检测—分选—复位的工艺流程和要求。然后,对该检测装置的关键部件——种子盒进行了结构设计,同时对其内部光路进行了理论设计,并结合Zemax光学设计软件对内部光路进行了仿真分析。接着,对该检测装置控制系统的软、硬件进行了设计。最后,搭建了检测装置样机,并开展了上料、检测和分选试验。试验结果表明,所设计的批量种子活力检测装置样机的稳定性较好,其综合成功率达96.67%。研究结果可为批量种子活力检测装置的商品化和市场化提供参考。

关键词: 可调谐半导体激光吸收光谱(TDLAS)技术种子活力批量检测光学设计    
Abstract:

In view of the lack of research on vigor detection device for batch seeds in China and the irreversible damage to seed samples caused by traditional detecting methods, a non-destructive detecting method using tunable diode laser absorption spectroscopy (TDLAS) technology to detect seed respiration intensity to determine its vigor level was proposed, and a detection device was designed to realize the batch detection of seed vigor. Firstly, the overall structure of the vigor detection device for batch seeds was designed, and the process flow and requirements of feeding?detection?sorting?reset were determined. Then, the structural design of the key component, the seed box, was carried out, at the same time, its internal optical path was theoretically designed, and the optical path was simulated and analyzed by the Zemax optical design software. And then, the software and hardware design for the detection device control system was carried out. Finally, a detection device prototype was built up, and the feeding, detecting and sorting tests were conducted. The test results showed that the designed vigor detection device prototype for batch seeds had good stability, and its comprehensive success rate was 96.67%. The research result can provide a reference for the commercialization and marketization of the vigor detection device for batch seeds.

Key words: tunable diode laser absorption spectroscopy (TDLAS) technology    seed vigor    batch detection    optical design
收稿日期: 2021-05-28 出版日期: 2022-05-06
CLC:  TH 122  
基金资助: 国家自然科学基金资助项目(31701512);浙江省重点研发项目(2019C02013);湖州市公益性应用研究项目(2019GZ15);浙江省公益技术研究计划资助项目(LGN21C160008);湖州师范学院校级科研项目(2021XJKJ02)
通讯作者: 祁亨年     E-mail: 02455@zjhu.edu.cn;02466@zjhu.edu.cn
作者简介: 徐云杰(1976—),男,内蒙古赤峰人,副教授,博士,从事机电一体化研究,E-mail:02455@zjhu.edu.cnhttps://orcid.org/0000-0001-6514-7773
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引用本文:

徐云杰,沈俞,胡飞,贾良权,祁亨年. 基于TDLAS的批量种子活力检测装置设计[J]. 工程设计学报, 2022, 29(2): 231-236.

Yun-jie XU,Yu SHEN,Fei HU,Liang-quan JIA,Heng-nian QI. Design of vigor detection device for batch seeds based on TDLAS[J]. Chinese Journal of Engineering Design, 2022, 29(2): 231-236.

链接本文:

https://www.zjujournals.com/gcsjxb/CN/10.3785/j.issn.1006-754X.2022.00.029        https://www.zjujournals.com/gcsjxb/CN/Y2022/V29/I2/231

图1  批量种子活力检测装置整机结构1—机架;2—上料机构;3—种子盒;4—检测机构;5—传送带;6—分选机构。
图2  种子盒结构示意1—盖板;2—呼吸腔;3—过滤网;4—反射镜片组;5—光学吸收池。
图3  怀特池反射原理示意
图4  种子盒光学吸收池内部光路反射示意
图5  激光反射40次后在大凹球面镜上产生的光斑
图6  批量种子活力检测装置气动控制系统原理
输入地址信号输出地址信号
X0启动Y0传送带启动
X1停止Y1电磁阀YA5-分选机构分选
X2上料Y2电磁阀YA6-分选机构分选
X3检测Y3电磁阀YA1-上料机构上料
X4分选Y4电磁阀YA2-上料机构送料
X6活力等级信号Y5电磁阀YA3-检测机构夹紧
X7位置传感器-检测Y6电磁阀YA7-分选机构分选
X10位置传感器-上料Y7电磁阀YA4-检测机构限位
表1  批量种子活力检测装置控制系统的I/O分配情况
图7  批量种子活力检测装置控制系统的硬件接线情况
图8  批量种子活力检测装置控制系统PLC程序的顺序功能图
图9  批量种子活力检测装置样机
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