| 基于差分吸收检测技术的非分散红外CO2呼吸气体传感器 |
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| 引用本文： | 袁博,袁宇鹏,张祖伟,杨靖,黄诗田,柯淋,张开盛,罗文博. 基于差分吸收检测技术的非分散红外CO2呼吸气体传感器[J]. 重庆邮电大学学报(自然科学版), 2021, 33(1): 118-125. DOI: 10.3979/j.issn.1673-825X.201903040073 |
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| 作者姓名： | 袁博 袁宇鹏 张祖伟 杨靖 黄诗田 柯淋 张开盛 罗文博 |
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| 作者单位： | 电子科技大学 电子科学与工程学院,成都611731;中电科技集团 重庆声光电有限公司,重庆401332;中国电子科技集团公司 第二十六研究所,重庆400060;中电科技集团 重庆声光电有限公司,重庆401332;中国电子科技集团公司 第二十六研究所,重庆400060;中电科技集团 重庆声光电有限公司,重庆401332;中国电子科技集团公司 第二十六研究所,重庆400060;电子科技大学 电子科学与工程学院,成都611731;中电科技集团 重庆声光电有限公司,重庆401332;成都君凌科创科技有限公司,成都610015;电子科技大学 电子科学与工程学院,成都611731;电子科技大学 电子科学与工程学院,成都611731 |
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| 基金项目： | 国家重点研发计划（2017YFB0406404） |
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| 摘 要： | 采用非分散红外(non-dispersive infrared,NDIR)气体传感器实时检测呼吸气体中的CO2气体浓度,进而反映人体运动机能和代谢功能等身体状态,可以满足人类日益增强的对自身健康状况进行了解的需求.利用电调制微机电系统(micro-electro-mechanical system,MEMS)光源和双通...
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| 关 键 词： | CO2 气体传感器 压电微泵 呼吸检测 差分检测 |
| 收稿时间： | 2019-03-04 |
| 修稿时间： | 2020-06-18 |
Non-dispersive infrared CO2 breathing gas sensor based on differential absorption detection technology |
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| YUAN Bo,YUAN Yupeng,ZHANG Zuwei,YANG Jing,HUANG Shitian,KE Lin,ZHANG Kaisheng,LUO Wenbo. Non-dispersive infrared CO2 breathing gas sensor based on differential absorption detection technology[J]. Journal of Chongqing University of Posts and Telecommunications, 2021, 33(1): 118-125. DOI: 10.3979/j.issn.1673-825X.201903040073 |
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| Authors: | YUAN Bo YUAN Yupeng ZHANG Zuwei YANG Jing HUANG Shitian KE Lin ZHANG Kaisheng LUO Wenbo |
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| Affiliation: | School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, P. R. China;Chongqing Acoustic-Optic-Electronic Co. Ltd, China Electronics Technology Group, Chongqing 401332, P. R. China;26th Institute of China Electronics Technology Group Corporation, Chongqing 400060, P. R. China;Chengdu Junling Kechuang Technology Co. Ltd, Chengdu 610015, P. R. China |
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| Abstract: | The non-dispersive infrared (NDIR) gas sensor is used to detect the concentration of respiratory CO2 in real time,and thereby reflect the physical state of the human body''s motor function and metabolic function, which can meet the growing needs of people to understand their own health conditions. In this paper, an electrically modulated micro-electro-mechanical system(MEMS) light source and a dual-channel pyroelectric sensor are used as an infrared light source and detector respectively. The gas chamber structure design and the piezoelectric micropump are combined to provide a stable gas flow rate for the sensor. By measuring the voltage ratio of the reference channel and the measuring channel of the pyroelectric sensor under different CO2 concentrations, the sensor calibration is obtained at room temperature, in the range of 0%~8% of the detection range, the absolute error is less than 0.5%, and the relative error is 3% and the response time of the gas sensor is less than 1.5 s. The anti-interference ability of the NDIR gas sensor to detect the breathing CO2 is improved, and it is expected to meet the demand for CO2 gas monitoring in applications such as motor function and metabolic function detection. |
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| Keywords: | CO2 gas sensor piezoelectric micropump breath monitor non-dispersive |
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