气象用湿度传感器误差调整方法的研究与应用  

Research and application of error adjustment of humidity sensor for meteorology

作　　者：马修才[1] 郑树芳[1] 蒋娟萍[2] 温晓辉[1] 牛永红 MA Xiucai;ZHENG Shufang;JIANG Juanping;WEN Xiaohui;NIU Yonghong(Inner Mongolia Atmospheric Sounding Technical Support Center,Hohhot 010051,China;Chengdu University of Information Technology,Chengdu 610225,China;Inner Mongolia Meteorological Information Center,Hohhot 010051,China)

机构地区：[1]内蒙古自治区大气探测技术保障中心,内蒙古呼和浩特010051 [2]成都信息工程大学,四川成都610225 [3]内蒙古自治区气象信息中心,内蒙古呼和浩特010051

出　　处：《电子设计工程》2022年第24期189-193,共5页Electronic Design Engineering

基　　金：国家自然科学基金面上项目(42075129)。

摘　　要：文中提出了利用线性回归的基本思想调整HMP155传感器湿度误差的方法。利用Excel内置方程,对湿度参考值和传感器湿度测量值进行线性拟合,将拟合得到的相关参数通过串行通信的方式写入传感器中进行误差调整。测试结果表明,这种方法对于调整传感器湿度误差非常有效,能将传感器整个湿度测量范围内的误差控制在很小的范围内,相较于以往用按键调整的方法,该方法更加便捷、高效,误差调整结果更佳。在方法研究的基础上,设计了用于传感器误差调整的工具软件,在软件后台自动实现线性拟合和误差调整过程,提高了传感器湿度校准的自动化水平。This paper presents a method to adjust the humidity error of HMP155 sensor by using the basic idea of linear regression.Using the built⁃in formula of Excel,linear fitting of humidity reference value and sensor output value was made,and the results of it was written into the sensor through serial communication.The test results show that this method is very effective for adjusting the humidity error of the sensor,and can control the error in the whole humidity measurement range of the sensor in a very small range.Compared with the previous method of key adjustment,this method is more convenient and efficient,and the error adjustment result is better.On the basis of the method research,a practical software is designed to adjust the sensor error.The process of linear fitting and error adjustment is realized in the software,which improves the automation level of sensor humidity calibration.

关 键 词：线性回归 HMP155 串行通信 误差调整 工具软件 

分 类 号：TN0[电子电信—物理电子学]