Ergincan O, Palasantzas G, Kooi B J
Nanostructured Materials and Interfaces Group, Zernike Institute for Advanced Materials, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
Rev Sci Instrum. 2014 Feb;85(2):026118. doi: 10.1063/1.4864195.
The determination of the dynamic spring constant (kd) of atomic force microscopy cantilevers is of crucial importance for converting cantilever deflection to accurate force data. Indeed, the non-destructive, fast, and accurate measurement method of the cantilever dynamic spring constant by Sader et al. [Rev. Sci. Instrum. 83, 103705 (2012)] is confirmed here for plane geometry but surface modified cantilevers. It is found that the measured spring constants (keff, the dynamic one kd), and the calculated (kd,1) are in good agreement within less than 10% error.
确定原子力显微镜悬臂的动态弹簧常数（kd）对于将悬臂挠度转换为准确的力数据至关重要。实际上，Sader等人[《科学仪器评论》83, 103705 (2012)]提出的用于悬臂动态弹簧常数的无损、快速且准确的测量方法，在此针对平面几何形状但表面改性的悬臂得到了验证。结果发现，测量得到的弹簧常数（keff，动态的kd）与计算得到的（kd,1）在误差小于10%的范围内吻合良好。
