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脉冲压电换能器的原理和概况
引用本文:周铁英. 脉冲压电换能器的原理和概况[J]. 石油物探, 1986, 25(1)
作者姓名:周铁英
作者单位:清华大学物理系
基金项目:“六五”期间国家重点科技攻关项目20—1成果
摘    要:在地震模型实验中,需要获得几十至几百千赫的、方向性较均匀的窄脉冲声波作为模拟震源。本文论述了作为这种模拟震源的脉冲压电换能器的表面换能原理;利用几种等效电路分析了获取窄脉冲声波的条件;给出了几种换能器的制作材料及其脉冲响应。由上述理论和实验的研究,研制出了具有一定灵敏度、方向性较均匀的窄脉冲压电换能器,初步满足了地震模型实验的要求。

收稿时间:1984-11-20

THEORY AND GENERAL DESCRIPTION OF IMPULSE PIEZOELECTRIC TRANSDUCER
Zhou Tieying. THEORY AND GENERAL DESCRIPTION OF IMPULSE PIEZOELECTRIC TRANSDUCER[J]. Geophysical Prospecting For Petroleum, 1986, 25(1)
Authors:Zhou Tieying
Abstract:While performing the seismic modelling experiment, it needs to have tens to hundreds of kilohertz and well-distributed orientation-dependent narrow pulse acoustic wave as simulation source. The theory on the superficial function of impulse piezoelectric transducer of the said simulation source is discussed; pre-requisites for obtaining the narrow pulse acoustic wave are examined using a couple of eqiuvalent circuitry; the materials for making the transducers and their pulse response are given. Also, with reference to the researches made on the aforementioned theory and experiments, a transducer with desired sensitivity and well-distributed orientation-dependent narrow pulse piezoelectric transducer is successfully developed. As a consequence, it has basically met the needs of performing the seismic modelling experiment.
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