气象科学2025，Vol.45Issue(4)：584-591,8.DOI:10.12306/2023jms.0022
基于阵列式湿度传感器的高精度湿度观测方法的研究
Research of a high-accuracy humidity observation method based on a humidity sensor array
摘要
Abstract
Automatic weather stations generally use capacitive humidity sensors when measuring the relative humidity on the ground.However,these sensors were prone to relatively significant measurement errors in harsh environments such as low temperatures or high humidity.To improve the humidity measurement accuracy,In this paper,a 4-point array humidity measurement system including four humidity sensors,four heating resistors and their measurement and control circuits is proposed,and the error correction is carried out by integrating the sensor heating technology and air pressure control.The error correction equations were established using measurement data at different air pressures and the quasi-Newton method(BFGS)with a global optimization algorithm to achieve error correction.The experimental results showed that the RMS error of the measurements can be reduced from 6.1％to 2.3％at 0℃ after correction.关键词
阵列式分布/湿度传感器/准牛顿法/加热/湿度误差修正Key words
sensor array/humidity sensor/BFGS/heating/humidity error correction分类
天文与地球科学引用本文复制引用
刘清惓,张婷婷,沈瑱,杨杰,丁仁惠,戴伟..基于阵列式湿度传感器的高精度湿度观测方法的研究[J].气象科学,2025,45(4):584-591,8.基金项目
国家自然科学基金资助项目(41875035 （）
41905030) （）
江苏省产学研合作资助项目(BY2022544) （BY2022544）
江苏省研究生科研与实践创新计划资助项目(SJCX22_0334) （SJCX22_0334）
江苏省高校大学生创新创业训练计划资助项目(202210300011Z) （202210300011Z）
