| 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.[点击复制] |
| SUI Weiping,PAN Zhongming,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[点击复制] |
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| 一种新型的超声换能器驱动与回波检测电路设计 |
| 隋卫平, 潘仲明, 王跃科 |
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(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。 |
| 关键词: 超声测距 超声换能器 脉冲变压器 自动电平控制 |
| DOI： |
| 投稿日期：2003-11-15 |
| 基金项目: |
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| A New Type of Driving and Echoes Detection Circuit for Ultrasonic Transducers |
| SUI Weiping, PAN Zhongming, WANG Yueke |
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(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. |
| Keywords: ultrasonic ranging ultrasonic transducer pulse transformer auto level control |
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