| 脉冲波形占空比的数字化测量及不确定度分析 |
| The Digital Measurement Method of On-Off Ratio of Pulse Waves and the Analysis of Uncertainty |
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| 中文摘要: |
| 介绍了脉冲波形占空比的3种数字化测量方法，它们分别是直接脉宽测量法、幅值统计测量法和平均值测量法。讨论了主要的不确定度来源，包括众数判别区间的影响、波形测量系统幅度测量误差的影响等等，给出了不确定度分析与评价过程．并结合一个实例，给出了脉冲波形占空比的不确定度评价结果。 |
| 英文摘要: |
| In this paper, three evaluation methods about the on-off ratio of pulse waves are introduced, they are the direct pulse width measurement method, the amplitude statistical method, and the average measurement method. The error sources are discussed, including the amplitude measuring error, the effect of the range of the mode of the density distribution method, and some others. The evaluation course of the uncertainty is presented. Combining with a group of experimental results, both the on-off ratio of pulse waves and its uncertainty are given out. |
| 梁志国 孙璟宇 |
| 中国航空工业第一集团公司北京长城计量测试技术研究所,北京100095 |
| 中文关键词: 脉冲波形 占空比 数字化测量 测量不确定度 |
| 英文关键词:on-off ratio,digital measurement,uncertainty,pulse waves,evaluation, |
| 基金项目: |
| DOI： |
| 引用本文：梁志国,孙璟宇.脉冲波形占空比的数字化测量及不确定度分析[J].计测技术,2004,(2):21~24. |
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