NTC热敏电阻双自适应交叠分段线性化处理方法
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摘要
针对常规分段策略下在分段点处经常出现跳变的问题,提出一种不仅能根据预设的误差容限自动确定每段的长度,同时能根据段间跳变容限自动确定交叠区的长度的双自适应交叠分段拟合法。实验结果表明:该方法不仅能抑制各分段点的段间跳变,使各分段之间基本达到零阶连续,而且能够有效地抑制总分段数的增加。
Aiming at the hopping often occurred at subsection points when conventional segmentation strategy was applied,a kind of fitting method based on dual self-adaptive overlapping segments was proposed,which automatically determines the range of each segment by the preset error tolerance and ensures the length of overlap region according to the hopping tolerance of intersection.Experimental results show that,this method can significantly suppress the hopping between segments and makes it close to zero-order continuity in the subsection point,and as well as can effectively inhibit the increase in the number of segments.
Aiming at the hopping often occurred at subsection points when conventional segmentation strategy was applied,a kind of fitting method based on dual self-adaptive overlapping segments was proposed,which automatically determines the range of each segment by the preset error tolerance and ensures the length of overlap region according to the hopping tolerance of intersection.Experimental results show that,this method can significantly suppress the hopping between segments and makes it close to zero-order continuity in the subsection point,and as well as can effectively inhibit the increase in the number of segments.
引文
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[3]麻朝,顾伟,褚建新.基于遗传算法的K型热电偶非线性校正[J].化工自动化及仪表,2014,41(4):368~371.
[4]潘浩,刘青松.交叠分段拟合在热传感器线性化中的应用[J].化工自动化及仪表,2015,42(3):253~258.
[5]马松龄.最小二乘法在热电偶热电势-温度特性线性化中的应用[J].西安建筑科技大学学报(自然科学版),2001,23(1):86~88.
[6]赵明富,廖强,钟连超,等.热电偶最优化分段最小二乘拟合线性化处理方法[J].计量技术,2004,(1):18~20.
[7]孙斌,于聪,周王超,等.NTC热敏电阻特性曲线的拟合方法研究[J].中国计量学院学报,2012,23(1):75~79.
[8]杜西亮,孙慧明.多项式回归在智能传感器线性化中的应用[J].传感技术学报,2005,18(1):212~214.