| 大尺寸测量的温度误差修正的不确定度分析 |
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| 引用本文： | 程真英,陈晓怀,唐燕杰. 大尺寸测量的温度误差修正的不确定度分析[J]. 工业计量, 2004, 14(2): 46-48 |
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| 作者姓名： | 程真英 陈晓怀 唐燕杰 |
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| 作者单位： | 合肥工业大学,仪器仪表学院,安徽,合肥,230009;合肥工业大学,仪器仪表学院,安徽,合肥,230009;合肥工业大学,仪器仪表学院,安徽,合肥,230009 |
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| 基金项目： | 国家自然科学基金资助项目 ( 5 0 2 75 0 47) |
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| 摘 要： | 文章着重讨论了大尺寸测量中影响温度误差修正精度的主要因素并深入分析了温度误差修正后的不确定度为满足大尺寸高精度的测量要求，提出了精确测定材料膨胀系数的方法，有效降低了温度误差修正后的不确定度，确保了大尺寸的高精度测量的实现。
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| 关 键 词： | 长度测量 残余误差 测量不确定度 精确膨胀系数 |
| 文章编号： | 1002-1183(2004)02-0046-03 |
| 修稿时间： | 2003-09-26 |
Uncertainty analysis of temperature error correction in large size measurement |
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| CHENG Zhen-ying,CHEN Xiao-huai,TANG Yan-jie. Uncertainty analysis of temperature error correction in large size measurement[J]. Industrial Measurement, 2004, 14(2): 46-48 |
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| Authors: | CHENG Zhen-ying CHEN Xiao-huai TANG Yan-jie |
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| Abstract: | Key factors that influence the precision of temperature error correction are discussed in this paper and the uncertainty after correction is thoroughly analyzed.The method of measuring accurate expansion coefficient of materials is presented to meet the requirement of measuring large scale with high precision.This method can decrease the measurement uncertainty after temperature error correction effectively and guarantee that the large-scale measurement with high precision be realized. |
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| Keywords: | Length measurement residual error measurement uncertainty accurate expansion coeff |
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