【摘要】 针对微操作系统中微操作工具相对于被操作对象Z方向精确定位难问题,提出了利用拟实环境辅助定位的方法,将定位问题转化为如何确定模糊图像模糊度问题。首先在拟实环境中精确定位,在实际操作中由高精度步进电机直接驱动操作臂使微操作工具到达被操作对象所处焦平面,既克服了“爬山”现象对定位精度的影响,又不受物镜景深的限制。更多还原

【Abstract】 In micro robot system,it is very difficult that Z -directional position o f micro tool is precisely obtained.In this paper,a new method based on assistant positioning of th e virtual environment of micro oper-ation is presented.Firstly,the Z -d irectional position of micro tool wi th a micron accuracy can be achieved b y blurring criterion in the virtual en vironment.Then according to the position,micro tool is directly driven to the position of object by precise step mo tor.Its precision is much higher tha n of the automatic focus method.更多还原