The thermally induced deflection of bimaterial cantilevers was theoretically examined, and an optimal excitation configuration was determined. The optimal heat spot position, resulting in the maximal deflection, was observed at a central location at a 0.5-0.6 length for short cantilevers and it shifted backwards to the clamped position at 0.4 length for long cantilevers. The calculated values and recent experimental results are in good agreement. The study also indirectly confirms the high value of the convection coefficient for liquid on vibrating surfaces in another experiment. These results can help to determine an optimal detection configuration for chemical and biosensing applications.

中文翻译：

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双材料悬臂梁最佳热激励的理论研究

理论上研究了双材料悬臂梁的热诱导挠度，并确定了最佳的激发构型。对于较短的悬臂，在中心位置以0.5-0.6的长度观察到了最佳的热点位置，从而导致了最大的挠度；对于较长的悬臂，该位置以0.4的长度向后移动到夹紧位置。计算值与最近的实验结果吻合良好。该研究还间接证实了另一项实验中液体在振动表面上的对流系数的高值。这些结果可以帮助确定用于化学和生物传感应用的最佳检测配置。