| 高精度温度测量电路设计 |
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| 引用本文： | 刘孟德,贺海靖,杜立彬. 高精度温度测量电路设计[J]. 山东科学, 2012, 25(2): 72-75. DOI: 10.3976/j.issn.1002-4026.2012.02.015 |
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| 作者姓名： | 刘孟德 贺海靖 杜立彬 |
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| 作者单位： | 1．哈尔滨工业大学，黑龙江 哈尔滨 150001；2.山东省科学院海洋仪器仪表研究所，山东 青岛 266001 |
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| 摘 要： | 针对海洋环境监测中广泛应用的铂电阻和热敏电阻温度传感器，设计了一种以恒流源激励的温度测量电路，解决了因传感器自加热和恒流源波动产生的测量误差。经现场测试，温度测量的精度、一致性都达到设计要求，满足海洋环境监测的实际应用需要。
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| 关 键 词： | 铂电阻 热敏电阻 AD7793 |
| 收稿时间： | 2011-11-23 |
Design of a high-precision temperature measurement circuit |
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| LIU Meng-de,HE Hai-jing,DU Li-bin. Design of a high-precision temperature measurement circuit[J]. Shandong Science, 2012, 25(2): 72-75. DOI: 10.3976/j.issn.1002-4026.2012.02.015 |
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| Authors: | LIU Meng-de HE Hai-jing DU Li-bin |
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| Affiliation: | 1.Harbin Institute of Technology, Harbin 150001, China;2.Institute of Oceanographic Instrumentation, Shandong Academy of Sciences, Qingdao 266001, China |
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| Abstract: | We design a high-precision temperature measurement circuit excited by a constant current source with RTD and thermistor commonly employed in ocean environment detection.We also reduce the measurement error caused by current variation and self-heating.Scene test shows that the circuit satisfies the requirement of ocean environment detection. |
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| Keywords: | RTD NTC thermistor AD7793 |
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