| 超声波测距误差分析 |
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| 引用本文： | 苏炜,龚壁建,潘笑.超声波测距误差分析[J].传感器与微系统,2004,23(6):8-11. |
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| 作者姓名： | 苏炜 龚壁建 潘笑 |
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| 作者单位： | 1. 武汉大学,自动化系,湖北,武汉,430070
2. 长江科学院,湖北,武汉430011 |
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| 摘 要： | 介绍了超声波测距的原理以及环境对测量准确度的影响,分析了测量误差产生的原因。阐述了仪器设计时超声波传感器的选择、计数频率的确定及盲区对测量的影响,指出了提高测量准确度的途径,重点阐述了利用软件修正误差的方法,使仪器达到了设计指标,满足了工业测量的实际需要。
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| 关 键 词： | 超声波 传感器 测距 误差 信噪比 盲区 |
| 文章编号： | 1000-9787(2004)06-0008-04 |
Error analysis of measuring distance with ultrasonic |
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| SU Wei,GONG Bi-jian,PAN Xiao.Error analysis of measuring distance with ultrasonic[J].Transducer and Microsystem Technology,2004,23(6):8-11. |
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| Authors: | SU Wei GONG Bi-jian PAN Xiao |
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| Affiliation: | SU Wei~1,GONG Bi-jian~2,PAN Xiao~1 |
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| Abstract: | The principle of measuring distance with ultrasonic,and the influence of environments on the measuring accuracy are introduced.The reason of measurein error is analyzed. When instrument is designed,the selection of ultrasonic sensor,the ascertainment of frequency count and the influence of blind area on measurement are expounded,the approach of improving measuring accuracy is pointed out, the method of correcting error with software is expounded emphatically.Design aims are achieved, measuring demands on industry are satisfied. |
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| Keywords: | ultrasonic sensor measuring distance error signal noise ratio blind area |
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