| NTC热敏电阻器分段多项式拟合非线性补偿 |
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| 引用本文： | 杜西亮,孙慧明,聂义祥.NTC热敏电阻器分段多项式拟合非线性补偿[J].传感器与微系统,2005,24(8):13-15. |
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| 作者姓名： | 杜西亮 孙慧明 聂义祥 |
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| 作者单位： | 1. 黑龙江大学,集成电路重点实验室,黑龙江,哈尔滨,150080
2. 中国电子科技集团公司,第四十九研究所,黑龙江,哈尔滨,150001 |
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| 摘 要： | NTC热敏电阻器的非线性影响到它的测温准确度和测温范围,介绍了利用分段多项式拟合法对其非线性进行补偿来减小非线性误差,提高测量准确度和量程,并通过实例对该方法进行分析和对比。实验表明:在-30~110℃温度范围内,应用该方法补偿后的测量误差小于±0.4℃。
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| 关 键 词： | 热敏电阻器 分段多项式 非线性补偿 |
| 文章编号： | 1000-9787(2005)08-0013-03 |
| 收稿时间： | 02 16 2005 12:00AM |
| 修稿时间： | 2005年2月16日 |
Nonlinearity compensation of NTC thermistors based on piecewise polynomial fitting |
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| DU Xi-liang,SUN Hui-ming,NIE Yi-xiang.Nonlinearity compensation of NTC thermistors based on piecewise polynomial fitting[J].Transducer and Microsystem Technology,2005,24(8):13-15. |
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| Authors: | DU Xi-liang SUN Hui-ming NIE Yi-xiang |
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| Abstract: | The NTC thermistor's nonlinearity affects its measurement accuracy and temperature measurement range.In order to reduce the nonlinearity errors and increase the accuracy of temperature measurement result and the measuring range,the piecewise polynomial fitting method for compensating nonlinearity of the themistors is introduced.The method is analyzed and compared by a practical example.It is demonstrated experimentally that the maximum absolute error of measuring temperature using this method is less than ±0.4℃ in the range of -30~110℃. |
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| Keywords: | thermistors piecewise polynomial nonlinearity compensation |
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