| 插管式多层地温测量传感器设计 |
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| 引用本文： | 陈涛,冶林茂,陈海波,韩振宇,李鹏,张振强.插管式多层地温测量传感器设计[J].传感器与微系统,2014(1):123-125,129. |
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| 作者姓名： | 陈涛 冶林茂 陈海波 韩振宇 李鹏 张振强 |
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| 作者单位： | [1]中国电子科技集团公司第二十七研究所,河南郑州450047 [2]河南省气象科学研究所,河南郑州450003 |
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| 摘 要： | 介绍了四线制引线Pt100电阻器用于实现多层地温测量传感器的具体设计方案,该方案主要包括AD采样电路、多路切换测量电路、牛顿迭代法计算温度值以及插管式结构设计,并进行算法验证和实际测量对比,经过验证,采用牛顿迭代法计算的温度与查表法得到的温度误差在0.015℃以内,实际测量与标准温度误差在0.2℃以内,该方案完全满足目前对地温测量的要求。
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| 关 键 词： | 四线制 Pt测温 Pt电阻器 AD 牛顿迭代法 地温测量 插管式结构 |
Design of intubation type multi-layer ground temperature measurement sensor |
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| CHEN Tao,YE Lin-mao,CHEN Hai-bo,HAN Zhen-yu,LI Peng,ZHANG Zhen-qiang.Design of intubation type multi-layer ground temperature measurement sensor[J].Transducer and Microsystem Technology,2014(1):123-125,129. |
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| Authors: | CHEN Tao YE Lin-mao CHEN Hai-bo HAN Zhen-yu LI Peng ZHANG Zhen-qiang |
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| Affiliation: | 1. The 27th Research Institute, China Electronics Technology Group Corporation, Zhengzhou 450047, China; 2. Henan Institute of Meteorological Sciences, Zhengzhou 450003, China) |
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| Abstract: | 4-wire lead Pt 100 resistor for realization of multi-layer ground temperature measurement sensor design scheme is introduced, the scheme includes AD sampling circuit, multi-channel switching measurement circuit, Newton iterative method to calculate temperature value and intubation type structure design, and algorithm verification and comparison of actual measurement, through verification, temperature calculated by Newton iterative method and temperature obtained by look-up table method, the temperature error is within 0. 015 ℃, the actual measurement and standard temperature error is within 0. 2 ℃, the scheme fully meet the ground temperature measurement requirements. |
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| Keywords: | 4-wire Pt 100 temperature measurement Pt resistor AD7793 Newton iteration method ground temperature measurement intubation type structure |
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