探空温度传感器设计与辐射误差修正方法研究  

Design of sounding temperature sensor and research on radiation error correction method

作　　者：周亚 刘清惓[1,2,3] 孙启云 戴伟 ZHOU Ya;LIU Qingquan;SUN Qiyun;DAI Wei(School of Electronics and Information Engineering,Nanjing University of Information Science&Technology,Nanjing 210044,China;Jiangsu Key Laboratory of Meteorological Observation and Signal Processing,Nanjing 210044,China;Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology,Nanjing 210044,China;Key Laboratory of MEMS of the Ministry of Education,Southeast University,Nanjing 210096,China)

机构地区：[1]南京信息工程大学电子与信息工程学院,江苏南京210044 [2]江苏省气象探测与信息处理重点实验室,江苏南京210044 [3]江苏省大气环境与装备技术协同创新中心,江苏南京210044 [4]东南大学MEMS教育部重点实验室,江苏南京210096

出　　处：《现代电子技术》2018年第24期1-4,9,共5页Modern Electronics Technique

基　　金：国家公益性行业(气象)科研专项项目(GYHY200906037,GYHY201306079);国家自然科学基金(41275042);江苏高校优势学科Ⅱ期建设工程项目(PAPD-Ⅱ)资助。

摘　　要：针对太阳辐射影响探空温度传感器测量精度的问题,设计一种基于24位Σ-Δ模/数转换器的高精度温度测量电路。搭建太阳辐射模拟实验平台并在高低温低气压实验箱中进行实验,提出一种利用Levenberg-Marquardt(L-M)算法拟合出太阳辐射误差修正方程的方法。实验结果表明,该探空温度传感器及其算法将均方根误差从0.88℃降低至0.28℃,提高了探空温度传感器的测量精度,在高空气象探测领域具有一定的应用潜力。In allusion to the problem that the solar radiation affects the measurement accuracy of the sounding temperature sensor,a high-precision temperature measurement circuit based on the 24-bitΣ-Δanalog-digital converter(ADC)is designed.An experimental platform is established for solar radiation simulation,and a high-temperature,low-temperature and low-pressure experimental box is used to conduct the experiment.A method of using the Levenberg-Marquardt(L-M)algorithm to fit out the solar radiation error correction equation is proposed.The experimental results show that the sounding temperature sensor and its algorithm can reduce the mean square root error from 0.88℃to 0.28℃,and improve the measurement accuracy of the sounding temperature sensor,which have a certain application potential in the high-altitude meteorological sounding field.

关 键 词：探空温度传感器 测量精度 太阳辐射 24位模/数转换器 误差修正 L-M算法 

分 类 号：TN820.1-34[电子电信—信息与通信工程] TP212.9[自动化与计算机技术—检测技术与自动化装置]