Effect of contact position and tip properties on the torsional vibration responses of atomic force microscope cantilever
سال انتشار: 1387
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 2,129
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شناسه ملی سند علمی:
ISME16_900
تاریخ نمایه سازی: 20 آبان 1386
چکیده مقاله:
In this paper, the characteristic equation of the torsional vibration for an AFM cantilever with different contact position is given. By considering the effects of length, mass and contact position of the tip the resonant frequency and amplitude of the torsional vibration of the cantilever were analyzed. Because the tip is not exactly located at one end of the cantilever, the cantilever is modeled as two beams. The results show that the first mode is the most sensitive mode of torsional vibration of an AFM cantilever, while the high-order vibration modes are more sensitive than the first mode with respect to the contact position. The effect of the contact position on the resonant frequency and amplitude are significant and are not negligible especially when the lateral stiffness is greater.
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