基于柔性可控气液界面的微尺度执行器

为了在微尺度范围内实现对目标对象进行柔性施力、推拉等一系列微纳操作,提出一种通过生成控制单个微尺度气泡直接与目标对象进行微纳操作的方法.当用气泡作为执行器对目标对象施力时,由于气体的可压缩性,气泡会被挤压变形,实现了柔性施力的过程.首先通过毛细管连接气泵的方式在液体环境下生成单个微尺度气泡,并定性分析气压法生成控制气泡...

A Micro-scale Actuator Based on a Flexible and Controllable Gas-liquid Interface

In order to apply forces to a micro-scale object in a flexible way, a single micro-scale bubble is generated at the end of a capillary. This bubble is directly used to contact and apply force to the object. Due to the compressibility of gas, a bubble also called a gas-liquid interface deforms when it interacts with the object. A bubble can work as an actuator and apply force in a flexible manner. First, a capillary is connected to an air pump to generate a single micro-scale bubble in liquid environment, and bubble generating and controlling process is qualitatively analyzed. Subsequently, a micro-cantilever is used as a reference and let the bubble applies forces at the end of the cantilever. The bubble acting forces are estimated by the deformation of the cantilever. Experiment shows a linear relationship between a bubble's deformation and its output forces when it acts as an actuator.