熱的に誘起されるクヌッセン力を用いたピンセット様装置に関する研究

抄録

In this study, we demonstrate that thermally induced Knudsen forces in a rarefied gas can be exploited to achieve a tweezer-like mechanism to trap and grasp a micro-object without physical contact. Using the direct simulation Monte Carlo (DSMC) method, we showed that a heated thin plate, mounted perpendicularly on a flat substrate, can act as the tweezer-like mechanism. Specifically, it is found that the pressure differences induced by the thermal edge flows around the corners of the beam and the tip of the thin plate, generate a force that attracts the beam to the plate horizontally and vertically.