The traditional PZT, however, is not the ultrasonic source with high efficiency because of the serious non-coupling phenomena between air and ordinary piezoelectric material.
但由于传统的压电传感器存在着空气与普通的压电材料之间严重不耦合现象，所以压电传感器并不是高效率的超声源。
Analysis of error source in the measurement can help to find the way to eliminate error. Accordingly the ultrasonic thickness measurement can adapt well to the measurement of artillery body.
并过对测量过程中的误差源进行分析，找出相应的消除办法，从而将超声测厚技术更加完善的用于火炮身管的壁厚差测量中去。
The acoustic source of plane circular pistons with the radiating transient pulse wave finds wide application in the ultrasonic inspection and test.
幅射瞬态脉冲波的圆形活塞声源在超声检测中得到广泛应用。
The rule of the ultrasonic wave propagating from its source to the sensor is gained.
研究了超声波在变压器内部的传播规律；
The system uses ultrasonic wave as signal source, with the multi-probe multi-directions sweep, and fluid soak method test the gear.
系统以超声波作为检测信号源，采用多探头多方位扫描、液浸法的方式对齿轮进行检测。
A kind of high frequency pulse electrical source at the need of electromagnetic ultrasonic experiments is presented.
针对电磁超声实验对脉冲电源的需求，研制了一种高频脉冲电源。
A new method for calibration of velocity sensitivity of ultrasonic transducers with a wide band standard acoustic source generated by a pulsed laser is proposed.
本文提出一种利用脉冲激光产生可重复的宽带标准声源、对超声换能器的速度灵敏度进行标定的新方法—激光超声法。
The expression for exciting with a laser line source is derived through analyzing the principle of exciting surface ultrasonic waves by a laser point source.
通过对点光源激励声表面波的机理进行分析，推导出线光源激励的表达式。
In this paper, vibration characteristics of plate sound source driven by transducer commonly used in ultrasonic cleaning are analyzed with the finite element method.
为了解超声清洗等应用中常用超声换能器激励的板声源的振动特性，使用有限元方法对其进行了研究，并通过实验验证了仿真结果。
The intention is to provide an authorized basis and a source of reference for effective application and standardization of phased-array ultrasonic examination for pressure equipment in our country.
期望为国内承压设备相控阵超声检测的有效应用和标准化，提供法定依据和有用借鉴。
An energy source in the form of an ultrasonic transducer (6) has as a curved energy transmission surface (7).
超声换能器(6)形式的能量源具有弯曲的能量传递表面(7)。
An energy source in the form of an ultrasonic transducer (6) has as a curved energy transmission surface (7).
超声换能器(6)形式的能量源具有弯曲的能量传递表面(7)。
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