Dynamic modelling for a submerged freeze microgripper using thermal networks
Dynamic modelling for a submerged freeze microgripper using thermal networks
复制标题
使用热网络对水下冷冻微夹具进行动态建模
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
N. Chaillet
中科院分区：
文献类型：
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作者：
B. López;M. Gauthier;N. Chaillet
人们对微操作系统的兴趣与日俱增，这就需要高效、可靠和灵活的操作策略。最近的研究表明，在液体环境中进行操作和组装比在干燥条件下更有利，特别是当物体尺寸小于100微米时。本文提出和分析的热驱动冰微夹持器设计为在水介质中以完全淹没的方式工作。操纵原理得益于冰的粘附性，其热控制原理是基于帕尔蒂埃效应，总结了样机的一些特点和首次微操纵试验。本文采用电气类比的方法对微热处理系统进行了建模。将潜式微夹持器分成不同的子系统进行研究，以识别其热网络。然后将它们相互连接起来，构建潜水式微夹持器的整个热网络。通过与实验测量结果的比较，验证了该模型的有效性。控制我们的设备所涉及的温度将是进一步工作的目的。
The growing interest in micromanipulation systems requires efficient, reliable and flexible handling strategies. Recent studies have demonstrated that performing manipulations and assembly in liquid surroundings is more advantageous than in dry conditions, especially when objects are below 100 µm in size. The thermally actuated ice microgripper proposed and analysed in this paper is designed to operate in a completely submerged manner in an aqueous medium. The handling principle benefits from the adhesive properties of ice, its thermal control principle is based on the Peltier effect, some features of the prototype and the first micromanipulation tests are summarized. This paper is focused on the modelling of the thermal microhandling system using an electrical analogy. The submerged microgripper is split into different subsystems which are studied in order to identify their thermal network. Then they are interconnected to build the whole thermal network of the submerged microgripper. This model is validated by comparison with experimental measurements. Controlling the temperatures involved in our device will be the purpose of further works.