介绍了电磁超声、激光超声及超声成像等新技术。
The electromagnetic acoustic technique, laser ultrasonic technique, ultrasonic imaging and so on are also introduced.
检测微弱的激光超声,要求系统具有较高的灵敏度。
Laser ultrasonic signal is so weak that it can be detected only by high sensitivity system.
文中给出了激光超声脉冲及其在金属板中的回波的波形曲线;
The wave charts of laser ultrasonic pulse and its echoes in metal plate are shown.
介绍了激光超声的机理、光激超声波信号的检测方法及其应用。
Principle and testing method of laser generated ultrasonic and its applications are introduced.
采用激光超声技术对扩散焊接件的界面联结质量进行非接触检测。
Laser ultrasonic technique is used for contactless inspection of diffusion bonded steel parts.
介绍了激光超声表面波的产生机理、微裂纹的检测方法及其应用。
The principles of laser generated surface acoustic waves (SAWs), the method of micro cracks detection and the applications are proposed.
采用该传感器测试了激光超声表面波、兰姆波和纵波,获得了很好的波形。
The sensor was applied to detect several kinds of laser ultrasonic, such as surface acoustic wave, Lamb wave and longitudinal wave, well-defined waveforms were obtained.
激光超声技术的开发和应用,将在机械工程、表面物理等领域产生深远的影响。
The development and application of the laser ultrasound technology will make a profound effect in mechanical engineering and surface physics.
本文介绍了压电薄膜检测的激光超声系统对CVD金刚石膜声速测量的原理及方法。
The principle and method of measuring the acoustic speed CVD diamond film with piezoelectric film detecting laser ultrasonic system are presented.
用激光超声测得铝块厚度与实际值很好地吻合,同时测出了系统的最小可探测位移。
Thickness of the aluminium plate is measured with laser ultrasounds. It tallies quite well with the real value. The minimum displacement which can be detected by the system is also meas...
另外,本文从虚拟仪器的概念出发,基于USB2.0提出并设计了激光超声系统的信号源。
In addition, a laser ultrasonic signal generator is designed based on USB2.0 in the conception of virtual instrument.
实验结果不仅在一定程度上说明了两种背衬的效果,同时也表明激光超声检测换能器响应的可行性。
The results not only account for the effects of the two types of backing material, but also indicate the feasibility of measuring the transducer response using laser ultrasound.
对激光在超声检测技术中的两个应用方面,即激光超声技术和激光扫描声学显微镜做了详细的阐述。
Two applications of laser, in the ultrasonic detection technique, laser ultrasonic technology and scanning laser acoustic microscope, are explored in detail.
由激光超声方法和自发自收脉冲反射法实验测定了所制作的换能器的频率响应,并比较了频谱分析结果。
The frequency response of the transducers is measured experimentally using laser ultrasound and a pulse echo reflecting method. The spectral analysis results are compared and analyzed.
热像检查系统附加于超声检查并且改动成以允许在与激光超声检查兼容的距离处对目标材料的热像检查。
The thermographic inspection system is attached to ultrasonic inspection and modified to enable thermographic inspection of target materials at distances compatible with laser ultrasonic inspection.
获得了材料中瞬态温度场分布集中于一个非常小的区域的结论,为激光加工及激光超声的产生提供了理论基础。
According to the conclusion of the distribution concentrating a very small area, a theoretical basis for laser processing and laser ultrasonic generation was es...
为了有效检测铝合金材料上的残余应力分布,研究了用激光超声技术来检测铝合金材料上的残余应力分布的方法。
In order to effectively determine the residual-stress profile of an aluminum alloy, the measuring method was studied by the laser ultrasonic technique.
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。
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.
首先讨论了热弹机制下脉冲激光超声的激发原理,并利用有限元法数值模拟激光热弹机制下激发板状材料中的超声导波。
The laser-generated ultrasound theory in thermo-elastic mechanism is discussed first. Then laser-generated ultrasonic in the plate material is simulated numerically by using the finite element method.
多年来,气体标准、烟火使用、激光、超声波、猫头鹰标本和无线电控制的模型飞机,这一切都尝试着将鸟从跑道上吓跑。
Over the years, everything from gas canons, pyrotechnics, lasers, ultrasound, stuffed owls and radio-controlled model aircraft have been tried to scare birds away from runways.
或者用超声波代替激光。
研究了在超声与激光的联合作用下四氯化碳和乙二醇样品的散射光谱的变化,并对实验结果进行了讨论。
Under the combination effects of ultrasonic and laser, the changes of scatter spectrum of carbon tetrachloride and glycol samples are studied, and the results of the experiments are discussed.
集团核心业务领域覆盖全面,包括“车削”、“铣削”、“超声振动加工”、“激光加工技术”及为机床和太阳跟踪系统而设计的自动化与软件解决方案。
The core business areas of "Turning", "Milling", "Ultrasonic" and "Laser" are complemented by automation and software solutions for machine tools and solar tracking systems.
结论口服药物外加半导体激光联合超声电导仪辅助治疗输卵管继发性不孕是一种较好的方法。
Conclusions The method of taking oral medicine combined with semiconductor laser and ultrasound conductimeter is the better way to cure the tubal infertility.
结论高频超声可作为激光治疗儿童面部海绵状血管瘤术前定位和术后疗效判断的手段。
Conclusions The high frequency ultrasound is helpful for laser treatment of facial subcutaneous cavernous hemangiomas in preoperative location and postoperative assessment.
目的应用高频超声观察激光治疗儿童面部海绵状血管瘤的疗效。
Objective To apply high frequency ultrasound to laser treatment of children facial subcutaneous cavernous hemangiomas.
该系统可以进一步改造,将激光入射光纤、超声和光纤接收器集成为一个复合探头,便于临床应用。
The ultrasound transducer, incident laser fiber and probe fiber can be integrated into a compounded detector, which can be implemented in clinic application.
目的:探讨体外超声、低强度激光血管外照射综合治疗冠心病的临床疗效,揭示其机理。
Objective: To observe the effects of the external ultrasound and extravascular low-power laser irradiation therapy in treating coronary heart disease; To reveal its mechanism.
对激光脉冲尖峰超声调制的一些规律及对打孔的影响进行了研究。
The regulation for ultrasonic modulation of laser pulse spikes and the influence of modulation on drilling are studied.
目的研究超声药物离子导入结合半导体激光治疗慢性盆腔炎的效果。
ObjectiveTo study the effect of ultrasound transdermal drug delivery combining with semiconductor laser on chronic pelvic inflammation disease(CPID).
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