| 基于铂电阻传感器的高精度温度检测系统设计 |
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| 引用本文： | 张瑜,张升伟.基于铂电阻传感器的高精度温度检测系统设计[J].传感技术学报,2010,23(3):311-314. |
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| 作者姓名： | 张瑜 张升伟 |
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| 作者单位： | 中国科学院空间科学与应用研究中心,北京,100190;中国科学院研究生院,北京,100190;中国科学院空间科学与应用研究中心,北京,100190 |
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| 摘 要： | 介绍了一种基于铂电阻传感器的高精度温度检测系统,用于星载微波辐射计定标源的精密测温,测温精度为±0.1℃。针对铂电阻引线带来的测量误差这一缺点,设计了四线制恒流源温度测量电路,同时对铂电阻传感器温度检测电路的测量误差进行了分析。系统具有精度高、可靠性高,使用方便的特点,当温度范围在-200℃~650℃之间,误差小于±0.1℃时,也可用于其它工业测温以及航空航天精密温度检测领域。
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| 关 键 词： | 温度检测 铂电阻传感器 四线制 微波辐射计 仪表放大器 |
A Design of High Accurate Temperature Measuring System Based on Platinum Resistance Transducers |
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| ZHANG Yu,ZHANG Shengwei.A Design of High Accurate Temperature Measuring System Based on Platinum Resistance Transducers[J].Journal of Transduction Technology,2010,23(3):311-314. |
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| Authors: | ZHANG Yu ZHANG Shengwei |
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| Affiliation: | ZHANG Yu1,2,ZHANG Shengwei11.Graduate University of Chinese Academy of Science,Beijing 100190,China,2.Center for Space Science , Applied Research Chinese Academy of Sciences |
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| Abstract: | A high accurate temperature measuring system based on platinum resistance transducers is introduced, and used in the space-borne microwave radiometer. The measuring accuracy is ±0.1℃. The system adopts fourwire temperature measuring method using constant-current source to eliminate the measuring error caused by Pt resistance wire. The analog amplifying circuit and its measurement errors have been analyzed. The system has features of high precision, high reliability and good applicability, and it could be applied to other industry such as aerospace industry. |
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| Keywords: | temperature measurement Pt resistance transducer four-wire microwave radiometer instrumentation amplifier |
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