摘要
目的:针对太空科学载荷安装面缓慢与微小的温度变化测试要求,设计一种基于热电制冷器的真空高精度温度控制系统。方法:系统使用真空箱与低温恒温槽模拟真空低温测试环境,采用热电制冷器作为温度发生器件,设计环境导冷与加热棒制热的组合方式对热端进行散热,并结合抗饱和积分PID算法进行温度控制。结果:该温度控制系统恒温控制误差范围在±0.008℃以内,匀速温升控制可达到最低0.025℃/1000 s,速率控制误差范围在±0.002℃/1000 s以内。结论:所设计温度控制系统满足科学载荷的匀速温升测试需求。
Aims:According to the test requirements of slow and small temperature change on the installation surface of space science load,a vacuum high-precision temperature control system based on thermoelectric cooler is required.Methods:The system used a vacuum box and a low temperature constant temperature bath to simulate the vacuum low temperature test environment and applied a thermoelectric cooler as a temperature generator.The combination of ambient cooling and heating rod heating was designed to dissipate the heat at the hot side;and the temperature was controlled by anti-windup integral PID algorithm.Results:The constant temperature control error of the temperature control system was in the range of±0.008℃.The constant speed temperature rise control can reach the minimum of 0.025℃/1000 s;and the range of rate control error was less than±0.002℃/1000 s.Conclusions:The designed temperature control system meets the requirements of the uniform temperature rise test of scientific load.
作者
邓云彪
王晓娜
杨遂军
叶树亮
DENG Yunbiao;WANG Xiaona;YANG Suijun;YE Shuliang(Institute of Industry and Trade Measurement Technique,College of Metrology and Measurement Engineering,China Jiliang University,Hangzhou 310018,China)
出处
《中国计量大学学报》
2022年第3期317-323,共7页
Journal of China University of Metrology
基金
国家自然科学基金项目(No.21927815)。
关键词
热电制冷器
真空
高精度
温度控制
thermoelectric cooler
vacuum
high-precision
temperature control
