北京交通大学学报2017，Vol.41Issue(5)：52-57,6.DOI:10.11860/j.issn.1673-0291.2017.05.008
基于Pt100的高精度测温电路
High-precision temperature measurement circuit based on Pt100
摘要
Abstract
The multi-channel birefringent filter,which is designed to improve the ability to observe the monochromatic property of the sun,is regarded as an important instrument for solar magnetic field observation.The refractive index of the birefringent crystal in the optical filter issensitive to temperature.Therefore,it is necessary to control constant temperature.Measuring temperature is premise of constant temperature control.A high-precision temperature measurement system based on Pt100 is studied and designed.The principle of high-precision temperature measurement,the circuit of temperature acquisition system and the scheme of temperature correction are provided.Finally,the high-precision temperature measurement instruments,such as RR9710,TD-1,are used to calibrate accuracy indirectly.The test results show that the temperature measurement system is stable and efficient.The accuracy could be reached to 0.02 ℃.关键词
集成电路设计/温度测量/Pt100/高精度Key words
integrated circuit design/temperature measurement/Pt100/high-precision分类
信息技术与安全科学引用本文复制引用
骆丽,杨永刚,胡文涛,林佳本..基于Pt100的高精度测温电路[J].北京交通大学学报,2017,41(5):52-57,6.基金项目
国家自然科学基金天文联合基金项目(U1431119)National Natural Science Foundation of China(U1431119) （U1431119）
