| 双引伸计法同轴度测量仪的不确定度分析 |
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| 引用本文： | 洪刚,孟德文,见革军,宋洋,赵阳.双引伸计法同轴度测量仪的不确定度分析[J].物理测试,2021,39(4):51. |
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| 作者姓名： | 洪刚 孟德文 见革军 宋洋 赵阳 |
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| 作者单位： | 钢研纳克检测技术股份有限公司，北京 100081 |
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| 摘 要： | 分析了双引伸计式同轴度测试仪的数学模型，建立了不确定度的评定方法，在高温蠕变持久试验机上进行了同轴度校准试验，参照JJF 1059.1-2012《测量不确定度评定与表示》计量技术规范，分析了不确定度评定中各个分量的来源并进行了综合评定，完善了同轴度校准的实际操作方法，提高了数据的准确性。
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| 关 键 词： | 同轴度测量 双引伸计 不确定度分析 |
| 收稿时间： | 2021-03-30 |
Uncertainty analysis of coaxiality measuring instrument with double extensometers |
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| HONG Gang,MENG Dewen,JIAN Gejun,SONG Yang,ZHAO Yang.Uncertainty analysis of coaxiality measuring instrument with double extensometers[J].Physics Examination and Testing,2021,39(4):51. |
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| Authors: | HONG Gang MENG Dewen JIAN Gejun SONG Yang ZHAO Yang |
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| Affiliation: | NCS Testing Technology Co., Ltd., Beijing 100081, China |
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| Abstract: | The mathematical model of double extensometer coaxiality tester was analyzed. The method for the evaluation of measurement uncertainty was established. The coaxiality calibration test was carried out on a high temperature creep endurance testing machine. According to technical specifications in JJF 1059.1-2012 Evaluation and Expression of Measurement Uncertainty, the sources of each component in uncertainty evaluation were analyzed and evaluated comprehensively. The practical operation method of coaxiality calibration was improved, which improved the accuracy of data. |
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| Keywords: | coaxial measurement double extensometer uncertainty analysis |
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