| 地震超声模型实验中的换能器 |
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| 引用本文： | 刘江平
,詹正彬.地震超声模型实验中的换能器[J].地球科学,1987(2). |
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| 作者姓名： | 刘江平 詹正彬 |
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| 作者单位： | Wuhan College of Geology，Wuhan 430074 |
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| 摘 要： | 本文从换能器(即探头)的换能原理及夹心式探头的结构着手,讨论了杆状探头的结构和干扰波。对组合探头的原理和晶片谐振频率的选择作了较详细的分析,认为组合探头具有能量强、延续度短和分辨率高等特点,最后对探头的指向性也作了简要论述。
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| 关 键 词： | 换能器 晶片 组合探头 指向性 夹心式探头 杆状探头 |
TRANSDUCER USED IN SEISMIC ULTRASONIC MODEL EXPERIMENT |
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| Liu Jiangping Zhan Zhengbin.TRANSDUCER USED IN SEISMIC ULTRASONIC MODEL EXPERIMENT[J].Earth Science-Journal of China University of Geosciences,1987(2). |
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| Authors: | Liu Jiangping Zhan Zhengbin |
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| Abstract: | To start with the principle of transducer and construction of the sandwich probe, this paper discusses the construction of pole probe and interferences appearing in the pole probe. The authors have proposde the ways to reduce and avoid them. On the basis of above -mentioned, this paper explains the characteristic of the combined probe formed by the parallel of crystal plates.It details the principle of combined probe and the choice of resonance frequency of the crystal plate. The combined probe is characterized by its high sensitivity and resolution. Finally, this paper also introduces the directivity of different probes. |
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| Keywords: | transducer crystal plate combined probe directivity sandwich probe pole probe |
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