1) double spiral moiré fringes
双螺旋叠栅条纹
1.
The basic principle to check light beam collimation with double spiral moiré fringes is illustrated,and the relationship of the characteristic parameters of double spiral moiré fringes and the angle of divergence,i.
介绍双螺旋叠栅条纹检测光束准直性的基本原理,进一步就双螺旋叠栅条纹的特征参量与被测光束发散角(即光束准直精度)的关系进行分析和推导。
2) Moiré fringe
叠栅条纹
1.
Experiement on displacement measurement with Moiré fringe techniques;
叠栅条纹检测位移实验系统
2.
According to the elementary geometry optics theory of two grating forming Moiré fringes,an improved model of incremental optical disk was put forward,a generic theoretical formula on phase of Moiré fringes affected by shaft eccentricity was gained,the error of this phase caused by shaft eccentricity was analyzed and discussed.
根据两计量光栅产生叠栅条纹的几何光学基本理论 ,在改进计量光栅码盘理论模型的基础上 ,推导出码盘偏心情况下读头输出的叠栅条纹信号相位的理论公式 ,对码盘偏心给叠栅条纹信号相位带来的偏差进行了分析与讨
3.
Incremental optical encoder measures length and angle based on the principle of moiré fringes.
增量式光学编码器根据径向辐射光栅产生的叠栅条纹进行角度测量 ,两光栅码盘轴之间及其与系统转动轴之间的偏心和晃动 ,影响着编码器读头输出的叠栅条纹信号的相位 ,这给角度测量带来了一定的系统误差。
3) Ring moire fringe
环形叠栅条纹
4) moire fringe processing
叠栅条纹处理
5) spiral fringe
螺旋形条纹
6) moiré topography
叠栅条纹图，莫尔条纹图
补充资料：青黄釉条纹双系罐
上海博物馆收藏，敛口、低领、圆肩、扁圆腹，对称双系，这是战国时期双系罐的典型特征，为断代工作带来便利。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条