带离心功能的极坐标式移动平台的设计与分析  

Design and analysis of a polar coordinate moving stage with centrifugation function

作　　者：陈贤哲[1] 高雪官[1] 

机构地区：[1]上海交通大学机器人研究所,上海200240

出　　处：《医疗装备》2014年第3期1-4,共4页Medical Equipment

摘　　要：文章介绍了一款自动化装置的结构设计基本方案,该装置可应用在基于图像的显微病理分析中,能够对体液样本进行离心处理,并在不移动样本的情况下直接降低转速,配合沿样本平台径向直线运动的物镜,对样本进行逐格扫描。为了避免离心运动过后转速降低使得样品恢复原始状态,本文还设计了一款特殊的样本容器。该设计中还提出了一种新型微调平机构解决方案,用以调节旋转平台基准面与聚光镜发出光线的垂直度。最后通过有限元仿真软件对该机构进行模态分析。This article introduces the mechanical design of an automated system, which can he applied in the image -based mi- croscopic pathological analysis. The device is able to centrifuge the liquid sample then directly begin to scan after reducing the rotation speed, without moving the potential biochemical polluting sample. With the help of a linearly moving objective, this system can move inside an area and observe the sample frame by frame. To prevent the liquid from restoring its un - centrifuged state during the scanning process, a particular sample holder is designed in this passage. Moreover, the system proposes a new fine tuning mechanism to adjust the perpendicularity between the rotating platform and the light beam from condenser. In the end, a modal analysis is carried out to help the system avoid the resonating frequency.

关 键 词：极坐标移动平台 离心 样本容器 垂直度调整 模态分析 

分 类 号：TH77[机械工程—仪器科学与技术]