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基于毛细管结构的热式风速传感器设计

发表时间:2018-05-31  浏览量:463  下载量:107
全部作者: 靳炜,刘清惓,宿恺峰,杨杰
作者单位: 江苏省大气环境与装备技术协同创新中心;南京信息工程大学电子与信息工程学院,江苏省气象探测与信息处理重点实验室;南京信息工程大学大气物理学院
摘 要: 提出一种基于毛细管结构的热式风速传感器,利用计算流体动力学(computational fluid dynamics,CFD)方法对该传感器探头进行数值分析。为验证CFD方法的准确性和热式风速传感器的实际性能,搭建了基于高低温低气压试验箱的测试平台,对-20~40℃范围的传感器温度特性进行测试,并结合模拟退火(simulated annealing,SA)算法拟合修正温漂。实验结果表明,在0.03~1 m/s范围内,该热式风速传感器的读数精度优于6%. 其在气候分析研究、环境监测等领域具有一定的应用潜力。
关 键 词: 电子、通信与自动控制技术其他学科;热式风速传感器;毛细管结构;计算流体动力学;模拟退火算法
Title: Design of thermal wind speed sensor based on capillary structure
Author: JIN Wei, LIU Qingquan, SU Kaifeng, YANG Jie
Organization: Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology; Jiangsu Key Laboratory of Meteorological Observation and Signal Processing, School of Electronic and Information Engineering, Nanjing University of Information Science and Technology; School of Atmospheric Physics, Nanjing University of Information Science and Technology
Abstract: Thermal wind speed sensor based on capillary structure is proposed. Computational fluid dynamics (CFD) method is employed to perform numerical analysis of the sensor probe. In order to verify the accuracy of the CFD method and the actual performance of the sensor, a test platform based on high-low temperature low air pressure testing chamber is set up. The temperature characteristics of the sensor in the range of -20-40℃ are tested. Simulated annealing (SA) algorithm is constructed to correct the temperature drift of the sensor. The experimental results show that the reading accuracy of the thermal wind speed sensor is better than 6% when the ranges of the wind speed is 0.03-1 m/s. The sensor may provide potential applications in the climatological research and environmental monitoring fields.
Key words: other subjects of electrics, communication and autocontrol technology; thermal wind speed sensor; capillary structure; computational fluid dynamics; simulated annealing algorithm
发表期数: 2018年5月第10期
引用格式: 靳炜,刘清惓,宿恺峰,等. 基于毛细管结构的热式风速传感器设计[J]. 中国科技论文在线精品论文,2018,11(10):1047-1051.
 
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