光外差 meaning in Chinese
optical heterodyne
Examples
- The testing principle of the system is explained and the two components of the system including the optical heterodyne measurement system and the system of ultrasound pulse generated by a laser pulse are introduced
课题采用一种结构简单、易调试的光外差超声无损探伤系统,对其探伤机理进行了说明,介绍了组成系统的两部分:光外差测量系统和激光脉冲激励超声部分。 - The signal - to - noise ratio of the nondestructive testing system employing optical heterodyne and ultrasonic techniques is analyzed and calculated from two aspects including phase matching of optical heterodyne measurement in nondestructive testing and the effects of beam incidence on the intensity of heterodyne signal and signal beam
对光外差超声无损探伤系统的信噪比从两个方面入手进行了计算分析:第一,光外差测量在无损探伤中的相位匹配;第二,光束入射角对信号光光强和外差信号强度的影响。 - In order to improve the existing pr adaptive optical heterodyne detection system ( praohds ) , a new praohds is proposed based on sppc and mppc coexistence . the experimental study of the system is completed by equal amplitude ar + laser beams , poorly coherent equal amplitude solid - state laser beams and high speed amplitude - modulated solid - state laser beams through distorting media . experimental results indicate that the new system is applicable
为了改进现有的光折变自适应光外差探测系统( praohds ) ，本文利用sppc和mppc同时共存的特性，提出了一种新型的praohds ，并利用ar ~ +等幅激光、相干性较差的固体等幅激光以及固体高速振幅调制激光对新系统进行了畸变光束的自适应光外差探测实验研究，结果证明了新系统在实际应用中的可行性。