文献类型：期刊文献

英文题名：Design and experimental evaluation of a high-accuracy air temperature measurement instrument for meteorological applications

作者：Yuan, Keya[1];Li, Lin[2];Chen, Yuan[3];Yang, Jie[3]

第一作者：Yuan, Keya

通讯作者：Li, L[1]

机构：[1]Beijing Union Univ, Coll Robot, Beijing 100101, Peoples R China;[2]Beijing Union Univ, Coll Appl Sci & Technol, Beijing 100101, Peoples R China;[3]Nanjing Univ Informat Sci & Technol, Jiangsu Collaborat Innovat Ctr, Atmospher Environm & Equipment Technol, Nanjing 210044, Peoples R China

第一机构：北京联合大学机器人学院

通讯机构：[1]corresponding author), Beijing Union Univ, Coll Appl Sci & Technol, Beijing 100101, Peoples R China.|[1141775]北京联合大学应用科技学院;[11417]北京联合大学;

年份：2026

卷号：97

期号：6

外文期刊名：REVIEW OF SCIENTIFIC INSTRUMENTS

收录：;EI(收录号：20262420926906);Scopus(收录号：2-s2.0-105041791303);WOS:【SCI-EXPANDED(收录号:WOS:001789104200001)】；

基金：This work was supported by the National Key Research and Development Program of China (Grant No. 2022YFB4601100) and the National Natural Science Foundation of China (Grant No. 41905030).

语种：英文

摘要：High-accuracy surface air temperature measurements (typically within 0.05-0.1 degrees C) are essential for atmospheric research and climate science applications. However, such measurements are affected by multiple sources of uncertainty, including radiation-induced temperature deviations and sensor time response characteristics. To address these challenges, this study develops and experimentally evaluates a high-accuracy air temperature measurement instrument designed to minimize radiation-induced errors. The principal sources of measurement deviation-direct solar radiation, diffuse and reflected components, long-wave radiation, altitude-related air density, wind speed, and solar incident angle-are systematically analyzed. A novel instrument incorporating a streamlined air-guiding structure is proposed to enhance convective ventilation and reduce radiative heating. A computational fluid dynamics (CFD) model is established to quantify radiation-induced temperature deviations under various environmental conditions. Based on the CFD-generated dataset, a multilayer perceptron-based correction model is developed to perform multi-parameter nonlinear correction of radiation-induced temperature deviations. Comparative field experiments, conducted using a 076B fan-aspirated instrument as a reference, show that the proposed instrument achieves a root mean square error of 0.019 degrees C and a mean absolute error of 0.015 degrees C under the tested conditions. Radiation-induced temperature deviations are effectively constrained within 0.05 degrees C, indicating that the combined structural design and correction approach can significantly improve measurement accuracy.