| 一种新型的超声换能器驱动与回波检测电路设计 |
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| 引用本文： | 隋卫平,潘仲明,王跃科.一种新型的超声换能器驱动与回波检测电路设计[J].国防科技大学学报,2004,26(3):107-111. |
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| 作者姓名： | 隋卫平 潘仲明 王跃科 |
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| 作者单位： | 国防科技大学机电工程与自动化学院,湖南,长沙,410073 |
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| 摘 要： | 通过对超声换能器的工作原理分析,设计了一种新型的超声换能器驱动与回波检测电路。驱动电路由功率放大器、脉冲变压器及一定的补偿电路组成;回波检测电路由前置放大器、带通滤波器和自动电平控制电路组成。试验结果显示,此电路性能良好,能明显提高超声换能器的测距范围。
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| 关 键 词： | 超声测距 超声换能器 脉冲变压器 自动电平控制 |
| 文章编号： | 1001-2486(2004)03-0107-05 |
| 收稿时间： | 2003/11/15 0:00:00 |
| 修稿时间： | 2003年11月15 |
A New Type of Driving and Echoes Detection Circuit for Ultrasonic Transducers |
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| SUI Weiping,PAN Zhongming and WANG Yueke.A New Type of Driving and Echoes Detection Circuit for Ultrasonic Transducers[J].Journal of National University of Defense Technology,2004,26(3):107-111. |
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| Authors: | SUI Weiping PAN Zhongming and WANG Yueke |
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| Institution: | College of Mechatronics Engineering and Automation, National Univ. of Defense Technology, Changsha 410073,China;College of Mechatronics Engineering and Automation, National Univ. of Defense Technology, Changsha 410073,China;College of Mechatronics Engineering and Automation, National Univ. of Defense Technology, Changsha 410073,China |
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| Abstract: | This paper presents a new type of driving and echoes detection circuit for ultrasonic transducers based on the analysis of their working mechanization. The driving circuit consists of a power amplifier, a pulse transformer and a compensation circuit. The echoes detection part is made up of a preamplifier, a band-pass filter and an ALC circuit. The experiment shows that this circuit can improve ultrasonic ranging distance and has good performances than the original ones. |
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| Keywords: | ultrasonic ranging ultrasonic transducer pulse transformer auto level control |
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