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- basic frequency laser 基频激光
- If this film series is used in He Ne laser, the dual frequency laser with 5MHz beat will be produced. 此膜系用于氦氖激光器 ,可制出频差为 5 MHz量级的双频激光器。
- Conclusion Doubled frequency laser 532nm is validated with low reoccurrence in treatment of CSCR. 结论倍频532激光光凝治疗中心性浆液性脉络膜视网膜病变，疗效确切，复发率低。
- First,the wavelet coefficients of basic frequency are extracted to identify the short duration disturbance like voltage sag,swell and interruption. 先提取基波频段所在的小波系数将电压凹陷、电压凸起和电压中断分别检测出来;
- Depolarization loss analysis of electro-optic crystal KDP heated by repetition frequency laser[J]. 引用该论文 张君;张雄军;魏晓峰;吴登生;田晓琳;曹丁象;董军.
- According to the oscillation theory of membrane, the inherence frequency and basic frequency of the flexible membrane are obtained. 根据薄膜振动理论得到了弹性膜片的固有频率和基频。
- Abstract: Temperature and thermal stress distributions in the KDP, heated by repetition frequency laser, are given by means of finite element methods. 摘 要： 基于有限元数值方法，给出电光晶体KDP在高平均功率激光负载下温度场分布和应力场分布。
- The PLL system is a stable phase feedback control system with many useful outputs, and it is robust to its inner parameters and small change of input's basic frequency. 该改进PLL系统是一个稳定的相位反馈控制系统，产生的多个输出信号可用于多种电能质量扰动的检测，而且对于检测系统的内部参数和电力系统频率的变化是鲁棒的。
- Super high - frequency laser treatment coarsens the fracture surface and improves anti - destroying property of cladding materials. 结果表明,钢基体经高重频激光强化处理改善了原基体状态铬层断面的瓷状形貌,断面粗糙,抗破坏能力提高。
- A simple formula for finding basic frequency is derived by use of relation of root and coefficient,and an example is enumerated to illustrate its application. 对特征方程利用根与系数的关系，导出了一个计算基频的简便公式，并结合实例说明其有一定的实用价值。
- New route between Tseung Kwan O Town Centre and Kowloon Ciy and operating via Tiu Keng Leng and Tseung Kwan O Tunnel. Proposed basic frequency 12 mintues. 新增行驶将军澳市中心至九龙城路线,途经调景岭及将军澳隧道。基本班次暂定12分钟。
- Adopting Intel Dynamic Processor only designed for Ultraportable Mobile Computing Device by Intel, their basic frequency is 1.6G Hz with average power 2.5W. 该产品采用了英特尔专为超便携型移动计算设备所设计的凌动处理器;主频为1.;6G赫兹;平均功耗为2
- In order to study the optical feedback characteristics at the dual frequency laser, a birefringent external cavity was studied throughboth theoretical analysis and experiments. 摘要为了研究双频激光器的光回馈特性，采用双折射外腔光回馈的方法，进行了理论分析和实验验证，取得了双频激光器中条纹倍频现象的数据。
- Objective To analyze the clinical results of doubled frequency laser with a wavelength of 532 nm in treatment of central serous chorioretinopathy (CSCR). 摘要目的研究倍频532激光光凝治疗中心性浆液性脉络膜视网膜病变的临床效果。
- At the sa me time,the relation between wave sp eed and basic frequency and bolt length is found out.The response curve of acceleration in different state is tested at la boratory. 同时得出了基频、波速和锚杆长度之间的定量关系;并在实验室对不同约束下锚杆的加速度响应进行了测试.
- With the model, the perpendicular basic frequency of different type underground gallery bridges are calculated and their empirical formula in normal condition has been obtained. 运用有限元计算模型,计算了各种类型地道桥的竖向基频,并提出正常状态地道桥竖向基频的经验表达式,为估算正常状态地道桥基频提供一种参考方法。
- The paper discusses how to designand test the micro self - adjustable controller with double frequency laser intervener and theory of super stability based onPOPOV. 现主要讨论一种采用双频激光干涉仪作为位置反馈元件的基于POPOV超稳定性理论的自适应微动控制器的设计和实验过程。
- A new two frequency laser alignment system is developed which consists of two Wollaston prisms with the same structure.One is for measurement;another for compensation. 介绍了一种新型自适应双频激光准直系统，该系统利用了两个完全对称的渥拉斯顿棱镜，一个作为测量元件，另一个作为补偿元件。
- At the same time , dynamical analysis for a given bridge has been done through the software MIDAS, and the relation of between basic frequency and sag ratio of stress- ribbon footbridges and frequency wave on the base of given sag have been educed. 同时，通过计算软件MIDAS对拟定桥梁进行动力分析，得出人行悬带桥的基频与垂跨比的关系以及特定垂度下的频率波形。
- This work deals with the fundamentals of basic frequency band signal transmission sys-tem for well logging and analyzes the bipolar return-to-zero system and Manchester trans-mission system for well logging in detail. 本文介绍了基带传输系统的原理,并较详细地分析了用于测井的双流归零制基带传输系统和曼彻斯特传输系统。
