光热振荡器的热扩散模拟

Optomechatronic Technologies (ISOT), 2010 International Symposium on : 25-27 Oct. 2010 : [Toronto, ON]. International Symposium on Optomechatronic Technologies (2010 : Toronto, Ont.) Pub Date : 2010-10-01 DOI:10.1109/ISOT.2010.5687335

Kotomi Kawakami, H. Okamura, A. Mitani

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引用次数: 0

摘要

讨论了材料参数对光热致动器/振荡器振荡幅度的影响，并推导了振荡幅度最大化的判据。弯曲应力与辐照部分的厚度成反比，而一定的厚度对于产生温度梯度是必要的。数值模拟表明，当厚度与材料的热扩散长度相当时，弯曲效应最大。用厚度为0.05 ~ 0.5mm的铜试样进行实验，证实了理论预测。

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Thermal diffusion simulations for photothermal oscillators

The effect of material parameters on the oscillation amplitude of a photothermal actuator/oscillator was discussed, and a criterion to maximize the amplitude was derived. The bending stress is inversely proportional to the thickness of the irradiated portion, while a certain thickness is necessary for a temperature gradient to be created. Numerical simulations suggested the bending effect becomes largest when the thickness is about the thermal diffusion length of the substance. Experiment using Cu samples with thickness ranging from 0.05 to 0.5mm confirmed the theoretical predictions.

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Optomechatronic Technologies (ISOT), 2010 International Symposium on : 25-27 Oct. 2010 : [Toronto, ON]. International Symposium on Optomechatronic Technologies (2010 : Toronto, Ont.)

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