| 查看: 1018 | 回复: 3 | ||
| 本帖产生 1 个 翻译EPI ，点击这里进行查看 | ||
[求助]
英语翻译成中文
|
||
| Mechanical grippers can also be used for manipulating micron-sized components. Sanchez-Salmeron et al. reviewed the existing systems for micro handling and transportation (Sanchez-Salmeron et al., 2005). Fig. 2.6 shows the hangdling of a live cell by a mechanical gripper (Gilbert 2008). Typical manipulation dimensions are in the range of micrometers up to a few millimetres, and the typical location accuracy is in the range of 0.1 to 10 . There are primarily three types of micro grippers: friction, hydraulic, and pneumatic. Gravity shall not be considered as the main force being applied to the part about handling methods at the micro-scale. Unwanted surface forces such as electrostatic, van der Waals and surface tension forces dominate at such scale. All these forces are known as adhesive forces (Fearing et al., 1995). Therefore, the pick-and-place method is difficult in micro-world taking into account of adhesive forces. To solve the problem, sensor control is often required to compensate for the inaccuracies resulting caused by the adhesive forces. Another survey of micro mechanical grippers for biotechnology applications is available in (Ouyang et al., 2008). The authors have pointed out that various microfabrication techniques are being increasingly used to grasp objects of different shapes with high positioning accuracy and a large number of degrees of freedom. |
回复此楼» 猜你喜欢
投稿Elsevier的杂志（返修），总是在选择OA和subscription界面被踢皮球
已经有7人回复
-
自荐读博
已经有7人回复
-
自然科学基金委宣布启动申请书“瘦身提质”行动
已经有4人回复
-
求个博导看看
已经有18人回复
-
青基代表作，AAAI之类的A会的special track在国内认可度高吗？还是归为workshop之流？
已经有3人回复
-
上海工程技术大学【激光智能制造】课题组招收硕士
已经有6人回复
-
上海工程技术大学张培磊教授团队招收博士生
已经有4人回复
|
本帖内容被屏蔽 |
2楼2011-04-28 18:05:40
【答案】应助回帖
syclee(金币+15, 翻译EPI+1): 2011-04-28 20:30:32
机械手抓也可以被用来控制微米级的部件，Sanchez和Salmeron等人审查了现有的微处理和运输系统，图2.6说明了用机械手抓对干细胞的微处理，(Gilbert 2008)。典型的机械手抓操纵尺寸在微米级到几个毫米之间，而其定位准确性在0.1 to 10 之间。有三种基本类别的微型手抓：摩擦型，气动型，水压型。在微观尺度处理方法层面重力不应当被认为是主要因素。而是像范德华引力，表面张力，静电引力这些多余的表面力占主导地位，所有的这些力被称为细胞粘附力(Fearing et al., 1995)。因此在微观世界很难用pick-and-place方法计算细胞粘附力，为解决这个问题，传感器的控制经常被用来补偿由细胞粘附力所引起的误差。另一项关于机械手抓在生物技术方面应用调查显示：各种微细加工技术正被快速应用到高定位精度和高自由度的物品上。   |
3楼2011-04-28 18:11:31
|
本帖内容被屏蔽 |
4楼2011-04-28 18:13:01