| 数字存储示波器Δt时间测量和ΔV幅度测量的不确定度评定 |
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| 引用本文： | 梁志国.数字存储示波器Δt时间测量和ΔV幅度测量的不确定度评定[J].航空计测技术,2011(4):39-41,56. |
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| 作者姓名： | 梁志国 |
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| 作者单位： | 中航工业北京长城计量测试技术研究所计量与校准技术重点实验室,北京100095 |
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| 基金项目： | 2011年国家计量技术法规制/修订计划项目资助 |
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| 摘 要： | 评定了数字存储示波器Δt时间差测量功能的测量不确定度和ΔV幅度差测量功能的测量不确定度,讨论了影响评价结果不确定度的几个主要误差来源,包括时基误差、抽样量化误差、测量重复性、幅度测量误差等。同时,以一组实验结果为例,给出了各自的不确定度评定结果。
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| 关 键 词： | 不确定度 时间差测量 幅度差测量 校准 评价 数字存储示波器 计量学 |
Evaluation of Uncertainty of Time Difference Measurement and Amplitude Difference Measurement of Digital Storage Oscilloscopes |
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| LIANG Zhiguo.Evaluation of Uncertainty of Time Difference Measurement and Amplitude Difference Measurement of Digital Storage Oscilloscopes[J].Aviation Metrology & Measurement Technology,2011(4):39-41,56. |
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| Authors: | LIANG Zhiguo |
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| Institution: | LIANG Zhiguo(Science and Technology on Metrology and Calibration Laboratory,Changcheng Institute of Metrology ＆ Measurement,Beijing 100095,China) |
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| Abstract: | In this paper,both the uncertainty of time difference measurement and the uncertainty of amplitude difference measurement are discussed.Some error sources are presented.They include the errors of time base of Digital Storage Oscilloscope（DSO）,the sampling width,the repeatability,the quantization error,and the amplitude measurement error,etc.Meanwhile,the uncertainty analysis is introduced in detail,and both the measurement uncertainty of time difference and the measurement uncertainty of amplitude difference are taken out by using experiment. |
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| Keywords: | uncertainty Δt time difference measurement ΔV amplitude difference measurement calibration evaluation digital storage oscilloscope metrology |
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