| 工业计算机断层成像几何尺寸测量不确定度评定 |
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| 引用本文： | 李敬,李寿涛,程云,刘清华,陈云斌. 工业计算机断层成像几何尺寸测量不确定度评定[J]. 无损检测, 2021, 0(1): 24-28 |
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| 作者姓名： | 李敬 李寿涛 程云 刘清华 陈云斌 |
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| 作者单位： | 中国工程物理研究院应用电子学研究所 |
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| 摘 要： | 介绍了一种基于试验的工业计算机断层成像(CT)尺寸测量不确定度的评定与分析方法,通过一系列重复测量,获得了工业CT尺寸测量不确定度分量和扩展不确定度,所有测量结果均位于亚像素范围,系统误差是试验主要的不确定度分量,可以满足实际应用中对工业CT尺寸测量不确定度评定的要求.
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| 关 键 词： | 工业CT 尺寸测量 不确定度评定 |
Uncertainty determination for dimensional measurements with industrial computed tomography |
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| Affiliation: | (Institute of Applied Electronics,Chinese Academy of Engineering,Mianyang 621900,China) |
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| Abstract: | This paper presents a method to determine the uncertainty of dimensional measurements with industrial computed tomography(CT)based on experimental evaluation method.Subsequently,some of the uncertainty budget and the expanded uncertainty are quantified based on a series of measurements.The uncertainty in measurement is within the sub-pixel region for all measures.The systematic bias is the main contributor for all measurement results.The results show that the proposed method can be a suitable approach for CT measurement uncertainty assessment in practical applications. |
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| Keywords: | industrial computed tomography dimensional measurement uncertainty determination |
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