Note: Determination of torsional spring constant of atomic force microscopy cantilevers: Combining normal spring constant and classical beam theory
Note: Determination of torsional spring constant of atomic force microscopy cantilevers: Combining normal spring constant and classical beam theory
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DOI：
10.1063/1.4820345
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发表时间：
2013-09-01
影响因子：
1.6
通讯作者：
Rutland, M. W.
中科院分区：
文献类型：
--
作者：
Alvarez-Asencio, R.;Thormann, E.;Rutland, M. W.
将法向弹簧常数与板/梁理论相结合，发展了一种计算原子力显微镜悬臂梁扭转弹簧常数的方法。对于刚性悬臂梁，由于高共振频率和低信噪比，很难获得热功率谱，因此它易于应用并允许确定扭转常数。结果表明，该方法具有普适性，可以用来求取任意梁形悬臂梁的扭转常数。(C)2013 AIP出版有限责任公司。
A technique has been developed for the calculation of torsional spring constants for AFM cantilevers based on the combination of the normal spring constant and plate/beam theory. It is easy to apply and allow the determination of torsional constants for stiff cantilevers where the thermal power spectrum is difficult to obtain due to the high resonance frequency and low signal/noise ratio. The applicability is shown to be general and this simple approach can thus be used to obtain torsional constants for any beam shaped cantilever. (C) 2013 AIP Publishing LLC.