ID 原文 译文
41036 文章对柱面微透镜阵列纳米压印中用到的精密模具的制作过程开展了仿真分析和实验研究。超精密切削技术是制作精密压印模具的有效手段之一。 The production process of precision molds used in cylindrical microlens nanoimprint was simulated, and ultra-precision cutting technology is one of the effective means for processing precision imprinting mold.
41037 基于Johnson-Cook本构模型，采用有限元分析方法模拟了超精密切削过程中切削参数与切削力之间的关系，获得了优选的切削参数。 Based on the Johnson-Cook constitutive model, the finite element analysis method was applied to simulate the relationship between the cutting parameters and the cutting force during the ultra-precision cutting process, and the preferred cutting parameters were obtained.
41038 实验结果表明，采用优选后的切削参数进行柱面微透镜阵列模具切削能够获得良好的切削效果。 Experimental results show that the cylindrical microlens array mold can obtain good cutting effect using the preferred cutting parameters.
41039 切削后模具的面形精度RMS值达到19nm，表面粗糙度Sq达到4nm。 The surface precision RMS value and the surface roughness Sq of the mold after cutting reaches 19 and 4 nm, respectively.
41040 精细导星仪(FGS)是空间天文望远镜精密稳像系统高精度姿态信息的快速检测装置，CMOS图像传感器的成像效果直接影响精细导星仪姿态信息的解算精度。 Fine guidance sensor(FGS) in the space astronomical telescope can realize highprecision measurement of attitude information for the precision image stabilization system. The imaging effect of the CMOS image sensor(CIS) directly affects the calculation accuracy of FGS.
41041 而实际工作时，CMOS成像器件存在最佳的读出范围，超出此范围的入射光强与光生电子数的线性度低，无法获取有效星点来满足后级的质心坐标解算。 However, the CMOS imaging device has the best readout range in actual operation, and the linearity of the incident ray intensity and the number of photo-generated electrons beyond this range is low, and the effective star points cannot be obtained to meet the centroid coordinate solution of the later stage.
41042 为解决这一问题，提出一种估算不同星等最佳积分时间的方法，并将积分时间作为探测器参数选择与调整的主要依据。 In order to solve this problem, a method for estimating the best integration time of different magnitude is proposed and the integration time can be used as the main basis for the selection and adjustment of detector parameters.
41043 测量结果表明，像元暗电流的读出码值和探测器面阵RMS噪声值均随积分时间的增加而增加。 The measurement results show that both the dark current of the sensor and the RMS noise will increase with the increasing integration time.
41044 依据星点光斑分布模型给出常用星等的最佳积分时间范围， According to the star facula distribution model, the best integration time range of commonly used stars is calculated.
41045 结合星点的分布情况，得出7等星在视场范围内的星数约为7颗，论证了小型CMOS器件对星斑的探测能力。 Combining with the star spot distribution, it is concluded that there are about seven stars in the field of view of 7-magnitude stars, which demonstrates the detection ability of small CMOS devices for star spots.