Ultrasonic wave excited in medium by laser can be used as a new method of ultrasonic measure and nondestructive testing.
在固体中利用激光产生超声波，可作为超声测量和材料无损检测的一种新方法。
The principle and method of measuring the acoustic speed CVD diamond film with piezoelectric film detecting laser ultrasonic system are presented.
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。
In order to effectively determine the residual-stress profile of an aluminum alloy, the measuring method was studied by the laser ultrasonic technique.
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。
Our laser - ultrasonic method is better than existing laser methods for measuring flows. So we use our laser - ultrasonic method to measure the vortex field of the flow.
激光-超声方法是通过测量由流动引起的超声脉冲信号在两束或更多来激光之间传递的时间差实现旋涡场测量的。
A new data fusion method called obstacle group identification was proposed. This method is based on grid map created by using laser and ultrasonic sensors.
利用激光和超声波传感器在用栅格表示法形成地图的基础上，提出了进行数据融合以提取环境特征的新方法：识别障碍物群。
A theoretical study on ultrasonic guide waves generated by a pulsed laser was presented, using the finite element method (FEM).
利用有限元法(FEM)对板状金属材料中脉冲激光激发的超声导波进行了理论研究。
To against the problems existing in ultrasonic level detection, the measuring principle, calculation formula and applicable features of the method of structural light of laser is introduced.
针对超声液面检测技术中存在的问题介绍了激光结构光法的测量原理、计算公式和应用特点。
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。
Principle and testing method of laser generated ultrasonic and its applications are introduced.
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。
The paper presents a new principle and method on laser drilling with focusing of ultrasonic vibration lens.
提出了超声振动透镜聚焦法打孔的新的原理和方法。
This paper mainly presents the method of Laser ultrasonic exciting and EMAT detecting.
摘要本文主要介绍脉冲激光激发超声波、电磁传感器检出方案。
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.
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.
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。
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