应用于离子迁移谱仪的湿度精确控制系统  

Development and application of precise humidity control system for ion mobility spectrometer

作　　者：宋瑜 罗元江 夏磊[2] 刘亚伟 黄超群[2] 储焰南[2] SONG Yu;LUO Yuanjiang;XIA Lei;LIU Yawei;HUANG Chaoqun;CHU Yannan(Institutes of Physical Science and Information Technology,Anbui University,Hefei 230601,China;Anhui Province Key Laboratory of Medical Physics and Technology,Institute of Health and Medical Technology,Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,China)

机构地区：[1]安徽大学物质科学与信息技术研究院,安徽合肥230601 [2]中国科学院合肥物质科学研究院健康与医学技术研究所,医学物理与技术安徽省重点实验室,安徽合肥230031

出　　处：《安徽大学学报(自然科学版)》2025年第1期36-43,共8页Journal of Anhui University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(62171433);安徽省重点研究与开发计划项目(2022a05020034);中国科学院合肥研究院院长基金高技术创新项目(YZJJ202305-CX)。

摘　　要：离子迁移谱仪是利用大气压下离子在电场中迁移速度的差异来实现对离子的快速分离和探测的一种检测仪器.研究表明,迁移管内的湿度变化会干扰离子迁移谱的检测结果,造成误检或漏检.该文以冒泡法为基础,对湿度传感器和质量流量控制器进行嵌入式开发,研制出以控制电路和鼓泡单元为主体的湿度精确控制系统;随后,对该系统性能进行考察,发现在湿度0%~100%RH范围内,该装置的湿度调节精度不大于±0.6%RH;利用该系统进一步对离子迁移谱仪的反应离子进行分析,该研究结果与Zahra Izadi团队报道正好相吻合,这表明该文研制的湿度精确控制系统能有效地实现湿度的精确调控,满足离子迁移谱对湿度精确控制的需求.The ion mobility spectrometer is an analytical instrument that utilizes the difference in mobility speeds of ions under an electric field at atmospheric pressure to achieve rapid separation and detection of ions.Studies have shown that changes in humidity inside the drift tube can interfere with the detection results of ion mobility spectra,leading to false positives or missed detections.Based on the bubbling method,this research involved embedded development of humidity sensors and mass flow controllers to create a precise humidity control system centered around control circuits and bubbling units.U pon evaluating the system's performance,it was discovered that within a humidity range of 0%~100%RH,the device's humidity regulation precision is no greater than±0.6%RH.By utilizing this system the reactant ions of the ion mobility spectrometer was further analyzed,The research results are consistent with the report by Zahra Izadi’s team,indicating that the developed precise humidity control system can effectively achieve accurate regulation of humidity,satisfying the Ion Mobility Spectrometer's need for precise humidity control.

关 键 词：离子迁移谱 湿度控制 冒泡法 嵌入式 

分 类 号：TH89[机械工程—仪器科学与技术]