• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied optics >Mid-infrared absorption-spectroscopy-based carbon dioxide sensor network in greenhouse agriculture: development and deployment
【24h】

Mid-infrared absorption-spectroscopy-based carbon dioxide sensor network in greenhouse agriculture: development and deployment

机译：温室农业中基于中红外吸收光谱的二氧化碳传感器网络：开发与部署

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A mid-infrared carbon dioxide (CO2) sensor was experimentally demonstrated for application in a greenhouse farm environment. An optical module was developed using a lamp source, a dual-channel pyre-electrical detector, and a spherical mirror. A multi-pass gas chamber and a dual-channel detection method were adopted to effectively enhance light collection efficiency and suppress environmental influences. The moisture-proof function realized by a breathable waterproof chamber was specially designed for the application of such a sensor in a greenhouse with high humidity. Sensor structure of the optical part and electrical part were described, respectively, and related experiments were carried out to evaluate the sensor performance on CO2 concentration. The limit of detection of the sensor is 30 ppm with an absorption length of 30 cm. The relative detection error is less than 5% within the measurement range of 30-5000 ppm. The fluctuations for the long-term (10 h) stability measurements on a 500 ppm CO2 sample and a 2000 ppm CO2 sample are 1.08% and 3.6%, respectively, indicating a good stability of the sensor. A wireless sensor network-based automatic monitoring system was implemented for greenhouse application using multiple mid-infrared CO2 sensor nodes. A monitor software based on LabVIEW was realized via a laptop for real-time environmental data display, storage, and website sharing capabilities. A field experiment of the sensor network was carried out in the town of Shelin in Jilin Province, China, which proved that the whole monitoring system possesses stable sensing performance for practical application under the circumstances of a greenhouse. (C) 2016 Optical Society of America
机译：实验证明了一种中红外二氧化碳（CO2）传感器可用于温室农场环境。使用灯源，双通道pyr电探测器和球面镜开发了光学模块。采用多通道气室和双通道检测方法，有效提高了集光效率，抑制了环境影响。透气防水室实现的防潮功能是专门为将这种传感器应用在高湿度温室中而设计的。分别描述了光学部件和电气部件的传感器结构，并进行了相关实验以评估传感器对CO2浓度的性能。传感器的检测极限为30 ppm，吸收长度为30 cm。在30-5000 ppm的测量范围内，相对检测误差小于5％。在500 ppm CO2样品和2000 ppm CO2样品上进行长期（10 h）稳定性测量时，其波动分别为1.08％和3.6％，表明传感器具有良好的稳定性。使用多个中红外CO2传感器节点，针对温室应用实现了基于无线传感器网络的自动监控系统。通过笔记本电脑实现了基于LabVIEW的监控软件，用于实时环境数据显示，存储和网站共享功能。在吉林省射林镇进行了传感器网络的现场试验，证明了整个监测系统具有稳定的传感性能，可在温室条件下进行实际应用。 （C）2016美国眼镜学会

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号