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首页> 外国专利> Ultrasonic wave sonde for subterranean investigation - is applicable in small boreholes giving high quality emission and detection

Ultrasonic wave sonde for subterranean investigation - is applicable in small boreholes giving high quality emission and detection

机译：超声波探空仪，用于地下调查-适用于小孔，可提供高质量的发射和检测

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摘要

A sonde for ultrasonic detection which can be raised and lowered in a verticla pit shaft has an elongated housing presenting a longitudinal axis. Inside the housing there is an assembly for emitting and an assembly for receiving acoustic waves. The active parts of both the emitting and the receiving assemblies consist of =1 washer of piezo-electrical material, the active face of which is perpendicular to the longitudinal axis of the housing, and is aligned to the active face of a mirror for reflecting acoustic waves. Each assembly is formed by a piezo-electrical washer fixed by its active face to a first mass of metal which is fixed in its turn to the housing of the sonde. The mirror is fixed to the first mass of metal, and a second mass of metal is fixed to the non-active face of the washer. The sonde is used in boreholes of small dia. and is designed to emit waves with a frequency of ten to several times ten kHz. A single frequency is emitted and the power can be adjusted by grouping the ceramic piezo-electrical elements under precompression.
机译：可以在垂直坑轴中升高和降低的用于超声波检测的探头，具有呈纵轴的细长外壳。在壳体内部，有用于发射的组件和用于接收声波的组件。发射和接收组件的活动部件均由> = 1的压电材料垫圈组成，其活动面垂直于壳体的纵轴，并与反射镜的活动面对齐以进行反射声波。每个组件由一个压电垫圈形成，该垫圈通过其活动面固定在第一块金属上，第一块金属依次固定在主机的外壳上。反射镜固定在第一块金属上，第二块金属固定在垫圈的非工作面上。探空仪用于小直径的钻孔。并设计为发射频率为十kHz十到几倍的波。发射单个频率，并且可以通过在预压缩下对陶瓷压电元件进行分组来调整功率。

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