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- Small optical beam method 小光斑法
- Different area of the photodiode will have different spectrum response during the test using small optical beam method.A semi-quantitative analysis is proposed to find the essential of the phenomenon. 摘要 通过对光电二极管结构和工作原理及光谱响应特性的分析,探讨了在相同工艺条件下,硅光电探测器的小光斑法测试过程中,不同大小光敏面得到不同光谱响应曲线问题。
- The optical beam can propagate stably with definite degrees of nonlocality. 在一定的非局域程度下,光束能以光孤子态在非局域克尔介质中稳定传输。
- A small optical fiber communication system based on PLD is designed in this paper. 因此,本文以可编程逻辑器件为载体设计了一个点对点的小型光纤通信系统。
- Gaussian beam method is based on the dynamic raytracing and paraxial approximation method. 高斯束方法是在动力学射线追踪和旁轴近似方法基础上发展而来的。
- Its drilling unit consists of laser, optical beam expander, galvanometer deflective mirror and focus system. 制孔单元由激光器、光学扩束、振镜和聚焦系统构成。
- Conclusions It was effective and safe to the Multi-zone LASIK on myopia who with relatively thin corneal by a small optical zones flying-spot scanner machine. 结论小光斑飞点扫描式准分子激光仪的LASIK多区切削模式对于相对角膜较薄的患者不失为一种有效、安全的方法。
- The calibration errors of FBG strain sensor using the usually equal-strength beam method are analyzed and modified from the standpoint of mechanics. 从力学角度出发,对实验室中常用的应用等强度梁的标定方式的误差进行分析与修正。
- In this paper, a new imaging formula for diverging fiber lenses is derived by using the theory of Gaussian optical beam propagation and the ABCD law. 本文利用高斯光束传播理论以及ABCD定律,导出了发散纤维透镜新的成象公式。
- Objective To evaluate the effect of the Multi-zone LASIK on the myopia who with relatively thin corneal by a small optical zones flying-spot scanner machine. 目的评价对角膜相对较薄的近视患者利用小光斑飞点扫描式准分子激光仪进行LASIK多区切削治疗的临床效果。
- In 1916, Kollmorgen, a small optical company in Brooklyn, New York was contracted to design, build and install the first workable periscope aboard the first U.S. submarine. 1916年,科尔摩根,小光公司在纽约布鲁克林的合同设计,建造和安装的第一个可行的潜望镜上的第一位美国潜艇。
- Taking into account the base beam damping effect, this paper has improved current measurement theory and presents a measurement equation based on flexural resonating cantilever beam method. 考虑到复合试件基底层材料阻尼的影响,本文对测量理论进行了改进,得到了考虑基底层阻尼影响的悬臂梁弯曲共振法测量方程。
- In working out static correction, the beam method is adopted to calculate the traveltime between the shot spot and the detection spot.In this way, the datum level correction quantity can be obtained. 求取静校正时采用射线法计算炮点到检波点的旅行时,从而得到基准面校正量。
- Grey scale Small optical wedges of continuous-tone images with orderly and progressive densities.They are available in various sizes and shapes to control half -tones, colour separation, and printing characteristics. 控制半色调、分色和晒印特性用的光学梯尺。它是连续色调影像,具秩序井然的累进密度并有不同大小尺寸和形状。
- The nonlinear graded index fiber lens is analysed Analyticexpressions for computing the focal length and beam waist radius ofthis lens are derived from the stationary self-focusing theory and theABCD law of Gaussian optical beam propagation. 本文对非线性变折射率纤维透镜进行了分析,利用高斯光束在非线性变折射率纤维中传播的稳态自聚焦理论以及在线性介质中传播的ABCD定律,导出了计算这种透镜的焦距及束腰半径的解析表达式。
- Besides, several small optical telescopes are stationed at a few sites around the world (the Taiwan Oscillation Network, TON) to conduct helioseismic, asteroseismic, and exoplanet observations. 本所同时在物理系大学部开设多门天文课程,包括普通天文学,基础天文观测,天文物理导论等等,以提供一个完整的大学部基础天文学学程。
- It can also combine optical switching with the ATM(Asyn-chronous Transfer Model)switching when the speed of optical beam deflection reaches a level of nanosecond. So it can fulfil the demand for switching needed by high speed rate information network. 当光束偏转速度达到纳秒级时,该网络又可将光交换与ATM(异步转移模式)交换相结合,从而满足高速信息网络对交换的要求。
- Based on optical beam deflection (OBD), a fiber-optic diagnostic system is proposed to investigate the propagation of a laser-induced plasma shock wave and the oscillation of a cavitation bubble. 摘要采用自行研制的光偏转测试系统对强激光诱导液体物质的空化现象进行了实验研究。实验得到了激光等离子体冲击波传播规律和空泡的动力学特性。
- Beamsplitter A device for dividing an optical beam into two or more separate beams, often a partially reflecting mirror. 将光束分离成两个或多个独立光束的装置,通常是一种特殊的反射镜。
- Equalizing Space Beam Method of Analyzing Piers 群桩基础的等代空间梁单元法