English translation for "beam divergence"
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- 电子束发散
光束发散度
射束发散
束发散度
Related Translations:
- Example Sentences:
| 1. | Using knife - edge method at the focus of a lens to measure the beam divergence of a giant pulse laser output
焦点刀口法测量巨脉冲激光的光束发散角 | | 2. | A new method is given in this paper , which is used two photo - diode ( pd ) to measure the beam divergence
本文提出了利用双探头直接检测光斑边界点来测量发散角的方法。 | | 3. | It ’ s been proved by the experiments that detecting apparatus system can be used to detect the laser beam divergence . the detecting results are very close to the given , attain the certain accuracy
实验表明,本文设计的双探头测量激光发散角的装置能够较准确的测量出发散角的大小,测量结果达到了一定的精度。 | | 4. | At89c52 is selected as the controller of the measurement system . with programming , it realize the controlling of the device movement 、 boundary points determination and calculation and output of the laser beam divergence
测试系统以at89c52为控制核心,实现对机械装置运动的控制、边界点的判断以及发散角的计算和输出。 | | 5. | The tuning curve of type - i phase matching of bbo opo are measured with accuracy ; the maximum conversation in total of the system is about 31 % at 615 . 6 nm , and it is fitted well with the gtp formula ; in the end we compared the output linewidth and unstable cavity far field beam qua lity of the bbo opo under the condition of type - i phase matching and type - ii phase matching , it is proved that we can obtain the parametric output of linewidth less than 0 . 3 nm and the beam divergence angle approaching diffraction limits by take the advantages of type - ii phase matching and unstable cavity designs
测量了该系统的转换效率最大为31 ，并能与理论公式极好地吻合，最后比较了在类相位匹配条件下和类相位匹配条件下的bbo - opo的输出线宽，以及非稳腔的远场光束质量，实验结果表明，利用类相位匹配以及非摘要稳腔设计可以获得线宽小于0 3nlm 、光束发散角接近衍射极限的参量光输出。 | | 6. | Pd is moving to detect the power of the laser , a simulated switch is selected to realize the divide control of the two photo - detectors ; incremental encoder is used to built the closed - loop control of the step - motor ; base on the characteristic parameter of the laser diode , built the mathematics model between the beam divergence and the temperature , to measure the result to carry on the temperature compensation
步进电机带动光电探测器进行光强检测,用来探测边界点;两个光电探测器之间的分时控制通过模拟开关来实现;选用光电编码器,搭建步进电机的闭环控制系统;根据半导体激光器本身的参数特性,建立发散角和温度的数学模型,对测量结果进行温度补偿。 | | 7. | The laser power is detected through the pd ’ s movement across the faculous region . when the value of the peak value of laser power is got , the power of the facular boundary points can be found according to definition of the facular boundary such as “ 1 / e ~ 2 ” theory . then the equation of the facular boundary can be made fitting by using the least square method , and calculate the beam divergence at last
采用两个光电探测器分别检测光束不同高度上的两个光斑,在确定光斑中心最大光强值后,根据光斑截面尺寸的1 / e2定义,得到光斑截面边界点的光强值,并以其为标准判定光斑截面的边界点,对探测到的边界点通过最小二乘法进行拟合,得到椭圆光斑截面的方程,根据空间几何关系求出发散角。 | | 8. | 1550nm is chosen as the work wavelength , cassegrain transmitting - receiving antenna as the optical antenna of the system through the elucidation of how to choose the work wavelength and optical antenna of comm - unication system . the structure and theoretical design parameter of apt sub - system have been presented through the discussion of the optical signal power estimation of apt sub - system , beam divergence angle , pointing error , and error signal extraction . compared with existed optical wireless communication system , the design scheme proves applicable
通过对通信系统工作波长选择、光学天线选择等阐述，选择了1550nm作为系统工作波长、卡塞格伦（ cassegrain ）收发合一天线作为系统光学天线；通过对apt子系统功率测算、束散角和瞄准误差、误差提取信号等的讨论，给出了apt子系统结构和理论设计指标，并将其与现有的光无线通信系统进行比较，说明该设计方案是可行的。 |
- Similar Words：
- "beam displacement" English translation, "beam display" English translation, "beam distance" English translation, "beam distance between ships" English translation, "beam distribution" English translation, "beam divergence angle" English translation, "beam diverging" English translation, "beam diversity" English translation, "beam divider" English translation, "beam division" English translation
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