摘要
当周期运动超出视觉停留范围时,直接观测周期运动(如转动、振动)就较为困难.利用计算机进行图像采集处理,既不直观,价格又不菲.为此,设计了周期运动观测实验仪.该仪器利用锁相成像观测法观测周期运动的物体,设置光源闪烁频率与周期运动频率一致,当光源开启时间足够短时,即可获得锁相状态下物体的准静态图像.
It is hard to observe directly when periodic motion （such as rotation, vlbranon） is stay beyond visual retention range. The method that uses computer to obtain and process the image of peri- odic motion is not intuitive and costs more money. Aiming at these problems, a new experimental instrument was designed to observe periodic motions. The instrument adopted phase-locking imaging method to observe periodic motions. The flicker frequency of light source was in consistent with that of the periodic motion. When the flash time was short enough, quasi-static image of the object could he obtained.
出处
《物理实验》
2016年第9期23-25,共3页
Physics Experimentation
基金
吉林大学2014年"大学生科技创新实验项目"
关键词
锁相成像
视觉停留
静态观测
phase-locking imaging
visual retention
static observation
