1 常州亚玛顿股份有限公司光电玻璃省重点实验室, 江苏 常州 213000
2 常州大学光伏科学与工程协同创新中心, 江苏 常州 213000
利用磁控溅射法,在不同工作压强下制备了氧化钨(WO3)薄膜,研究了工作压强对WO3膜层微观结构的调控作用,并研究了WO3膜层微观结构对其电致变色性能的影响。研究结果表明,制备的WO3薄膜属于非晶相,表面呈峰状结构;随着工作压强的增大,WO3薄膜膜层微观结构变疏松,电致变色响应时间和循环寿命均减短;在最佳膜层微观结构下,WO3薄膜光学密度可达0.64,循环寿命达1500周。
薄膜 微观结构 氧化钨 电致变色性能 激光与光电子学进展
2017, 54(11): 113103
提出了一种利用互补条纹实现位置变形检测及补偿的新方法。该方法可以用于校正物体在线检测中因定位不精确而带来的测量误差。首先利用参考物体并根据散乱点相位插值算法生成互补条纹;然后投射到被测物体表面,计算未发生形状变形处的相位,即为由产品定位不精确引起的相位变化量。利用此相位差与深度映射关系可将待测物体绝对相位转化为其三维信息,同时根据基于重叠区最小二乘迭代原理计算出待测物体定位误差量,最后利用刚体变换方法补偿待测物体的位置变形。计算机模拟及实验结果验证了该方法的正确性、有效性和可行性。
光学三维测量 变形检测 重叠迭代 互补条纹投射技术 光学学报
2011, 31(s1): s100509
圆柱坐标下的多视角(孔径)扫描拼接方法主要针对类似回转物体面形的拼接测量,用该方法在对非单一回转轴,或者近似回转轴位置远离坐标轴形式的一类物体面形的拼接测量时遇到了困难,把拼接方法推广到基于虚拟圆柱可以解决这一难题。为此提出了基于虚拟圆柱原理的曲面拼接方法,给出了如何估计虚拟圆柱的半径,以及轴心坐标的计算方法,推导了基于虚拟圆柱的坐标转换方程,通过计算机模拟验证了其精确性,并通过实验证明这种方法对解决三维复杂物体表面特别是多视角测量获得面形的拼接测量问题是十分有效的。
光学测量 三维测量 重叠扫描拼接 平均曲率 虚拟圆柱
1 Department of Communication Engineering, Shanghai University (Jiading Campus),Shanghai 201800, China
2 Department of Mechanical Engineering, Shanghai University (Jiading Campus),Shanghai 201800, China
3 Shanghai Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences,Shanghai 201800, China
phase-stepping algorithm unwrapping interferometry Chinese Journal of Lasers B
1999, 8(1): 34
1 Department of Communication Engineering, Shanghai University (Jiading Campus),Shanghai 201800, China
2 Department of Precision Mechanical Engineering, Shanghai University (Jiading Campus),Shanghai 201800, China
3 Shanghai Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences,Shanghai 201800, China
phase-stepping algorithm Lissajous figures interferometry Chinese Journal of Lasers B
1999, 8(2): 179
1 Department of Electronic Engineering, Shanghai University Jiading Campus, Shanghai 201800
2 Department of Mechanic Engineering, Shanghai University Jiading Campus, Shanghai 201800
3 Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
interferometry phase-stepping algorithm Chinese Journal of Lasers B
1997, 6(2): 117
1 Department of Electronic Engineering, Shanghai University (Jiadin Campus), Shanghai 201800
2 Department of Mechanic Engineering, Shanghai University (Jiadin Campus), Shanghai 201800
3 Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
4 State Key Laboratory of Modern Optical Instrumentations, Zhejiang University, Hangzhou 310027
interferometry phase-stepping error algorithm Chinese Journal of Lasers B
1997, 6(3): 253
1 Department of Electronic Engineering, Shanghai University (Jiading Campus), Shanghai 201800
2 State Key Laboratory of Modern Optical Instrumentations, Zhejiang University, Hangzhou 310027
3 Department of Mechanical Engineering, Shanghai University (Jiading Campus), Shanghai 201800
4 Shanghai Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Shanghai 201800
phase-stepping interferometry phase unwrapping algorithm wrapped phase Chinese Journal of Lasers B
1997, 6(5): 441
本文论述相因子叠加法测量三维位移时的误差、灵敏度以及可测范围,并讨论了提高灵敏度的方法.
研究了物体的三维位移在傅里叶频谱面上引起的位相因子的变化。用全息二次曝光法记录此变化。提出一种测量漫射物体的三维位移矢量的新方法,避免了用传统的、二次曝光全息法测量三维位移矢量中遇到的许多困难。实验结果与理论分析得到很好的吻合。