| 双向电脉冲激励压电超声换能器实验研究 |
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| 引用本文： | 刘正埙,李奉珠.双向电脉冲激励压电超声换能器实验研究[J].南京航空航天大学学报,1992(3). |
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| 作者姓名： | 刘正埙 李奉珠 |
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| 作者单位： | 南京航空学院机械工程系
(刘正埙)，南京航空学院机械工程系(李奉珠) |
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| 摘 要： | 本文对双向电脉冲激励压电陶瓷超声换能器进行实验研究。对两种类型的换能器进行了实验,进而利用迭加原理对换能器所产生的脉冲超声波波形进行了讨论。结果证明,双向电脉冲是激励压电超声换能器比较理想的电脉冲波形,可以得到幅值大、脉冲持续时间短的超声波,有广泛的应用前景。
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| 关 键 词： | 超声波 压电陶瓷换能器 阻尼 持续时间 激励 |
Experimental Investigation on Bidirectional Electric Pulse Excitation of Piezoelectric Transducer |
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| Liu Zhengxun Li Fengzhu.Experimental Investigation on Bidirectional Electric Pulse Excitation of Piezoelectric Transducer[J].Journal of Nanjing University of Aeronautics & Astronautics,1992(3). |
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| Authors: | Liu Zhengxun Li Fengzhu |
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| Institution: | Department of Mechanical Engineering |
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| Abstract: | Bidirectional electric pulse excitation of piezoelectric transducers for pulsed ultrasonic wave is investigated in this paper. Two types of transducers are experimented and the results are analysed with the method of superposition. It is shown that bidirectional electric pulses may be used as an ideal electric pulse excitation for the generation of high-amplitude,short-duration pulse ultrasonic waves. |
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| Keywords: | ultrasonic waves piezoelectric ceramic transducers damping continuous time excitation |
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