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对准误差     
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  alignment error
     Effect of alignment error on Fresnel lens
     对准误差对菲涅耳透镜衍射效率的影响
短句来源
     Taking 4 step and 8 step and 16 step Fresnel lens for example, the effect of alignment error on diffractive efficiency is analyzed systematically and simulated by computer.
     并以 4台阶、8台阶、16台阶菲涅耳透镜为例 ,系统分析对准误差对衍射效率的影响并进行计算机模拟研究。
短句来源
     Alignment error can less than 0.5μm.
     采用光栅反射法,现将光轴和转轴的对准误差减少到小于0.5μm。
短句来源
     A Simplified Algorithm for Calculating the Influence of Initial Alignment Error on Inertial Guidance Error
     初始对准误差对惯性制导误差影响的简化算法
短句来源
     The Analysis of Ground to Ground Missile's Initial Alignment Error and Its Effect
     地地导弹初始对准误差及其影响分析
短句来源
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  pointing error
     Analysis and experiment show that the laser divergence of 0. 4 mrad is obtained for the communication terminals based on the optical system, with the pointing error of less than 0. 3 mrad, on which free space communication in 2 km can be achieved.
     分析和实验表明,基于该光学系统的通信终端激光发散角达到0.4 mrad,对准误差小于6μrad,可实现2 km的自由空间光通信。
短句来源
     Influence of Pointing Error on Laser Satellite Communication System with an Optical Preamplifier
     对准误差对前置光放大卫星激光通信系统性能的影响
短句来源
     Another important advantage of distributed array is when the actual rms pointing error is larger than the designed value,the power penalty can be reduced greatly by changing the distance between the sub-apertures.
     分布式阵列的另一个重要特性还在于:当实际发射机对准误差标准差大于设计值时,通过调整阵列各子接收孔径之间的距离,可以在很大程度上降低发射机对准误差引起的功率损失。
短句来源
     Pointing error of transmitter and atmospheric turbulence cause signal fading for satellite-to-ground laser communication,and the anti-fading characteristics of distributed ground-based array receiver with optical preamplifiers are analyzed.
     星地激光通信中,发射机对准误差及大气湍流会引起接收信号衰落,对带前置光放大的阵列接收机,分析了分布式接收阵列的抗衰落性能。
短句来源
     Simulation results show that for given root-mean-square(RMS) pointing error and required average bit error rate,there exist optimal transmitting beamwidth,receiver antenna diameter and space optical coupling parameter that minimize transmitted power,the required transmitted power is not decreased even using a receiver antenna larger than optimum antenna.
     仿真结果表明,在给定平均误码率要求及对准误差一定时,存在一个最佳发射光束宽度、接收天线直径及空间光耦合参数,使所需的发射功率最小,采用更大的接收天线并不能降低对发射功率的要求。
短句来源
更多       
  alignment errors
     Analysis of the alignment errors on performance measurement of optical scanner of laser radar
     激光雷达光学扫描性能测试的对准误差分析
短句来源
     Programmable controller is employed to adjust the manipulator's position and orientation in order to align the IC mask according to the alignment errors.
     对准过程中,根据检测到的对准误差,由可编程控制器对传输机械手的位置和姿态进行调整,从而改变掩模版相对于对准检测装置的位置和姿态.
短句来源
     Based on the scalar theory,Fresnel formula and Fourier transform are used to analyze the effects of the surface reflection of SiO 2 thin film and substrate,the alignment errors and the angle of incidence of light beam on the diffractive efficiency of 16 step Fresnel lens.
     在标量衍射理论的基础上 ,应用菲涅耳公式和傅里叶变换分析 Si O2 薄膜和基底的表面反射、对准误差以及入射角对 1 6阶菲涅耳透镜衍射效率的影响 .
短句来源
     FABRICATION OF FRESNEL LENS AND ANALYSIS OF PERFORMANCE (EFFECT OF ALIGNMENT ERRORS)
     菲涅耳透镜的制作及性能分析(对准误差的影响)(英文)
短句来源
     The alignment errors and the motions of IC mask can be decoupled via reasonably choosing the position and orientation of the measure device.
     通过合理选择对准检测装置的安装位置与姿态,实现对准误差与掩模版运动之间的解耦.
短句来源
更多       
  alignment tolerance
     This paper specifically analyzes the philosophy of requirements of permissible out-of-roundness for shells, of shape tolerance for heads, and of alignment tolerance for sections at edges to be welded which are specified by ASME Boiler and Pressure Vessel Code.
     本文对ASME锅炉及压力容器规范中壳体许用不圆度规定、封头形状误差规定、待焊对接截面对准误差规定等逐一进行分析。
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  alignment error
A measure of the resonator alignment error is derived by partitioning a 1% sample of the laser output into quadrants, and using standard electronic circuits to compare the average power present in each quadrant.
      
The alignment error between two DXL-processed layers has been measured to be within ±5?μm range.
      
Alignment error of an image sensor relative to the optical axis of a star sensor head and alignment errors between four heads were calculated from pictures taken in an orbital experiment.
      
The limits of effectiveness of this synchronization system are then discussed, especially with regard to the accumulation of timing jitter as well as of alignment error.
      
The third strain-sensing element was used to calculate the gage alignment error and "true" longitudinal and transver e strains.
      
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  pointing error
Some interaction between eye and head eccentricity also contributed to the pointing error.
      
The intensity distribution in a Gaussian beam is represented by a bundle of rays in which each ray has a random pointing error.
      
Without VS 73% of the volunteers showed a systematic horizontal pointing error towards the right side.
      
Consequently, the OP maneuver has a large pointing error.
      
The root mean square of pointing error of moving cable car was measured and the displacements of cable car within the wind speed of 8 m/s, which is the maximal wind speed of the place where the FAST will be located, were evaluated.
      
更多          
  alignment errors
The moiré signals generated by two pairs of quadruple gratings on mold and wafer are optically projected onto two photo-detector arrays, then the detected moiré signals are used to estimate the alignment errors in the x and y directions.
      
An optimal algorithm of panoramic sewing of images in the presence of alignment errors has been synthesized on the basis of the criterion of a posteriori probability maximum.
      
Alignment errors in the strong-focusing synchrotron
      
Although alignment errors are known to occur due to limb rotation, the magnitude of this effect is unknown.
      
Rotation and flexion of 5° led to significant alignment errors of 3.4° and 2.8°, respectively, for internal and external rotations.
      
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