Abstract
The spring constant of microfabricated cantilevers used in scanning force microscopy (SFM) can be determined by measuring their resonant frequencies before and after adding small end masses. These masses adhere naturally and can be easily removed before using the cantilever for SFM, making the method nondestructive. The observed variability in spring constant—almost an order of magnitude for a single type of cantilever—necessitates calibration of individual cantilevers in work where precise knowledge of forces is required. Measurements also revealed that the spring constant scales with the cube of the unloaded resonant frequency, providing a simple way to estimate the spring constant for less precise work.
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Dates
Type | When |
---|---|
Created | 23 years ago (July 26, 2002, 9:58 a.m.) |
Deposited | 2 years, 1 month ago (July 2, 2023, 2:37 p.m.) |
Indexed | 2 weeks ago (Aug. 6, 2025, 9:54 a.m.) |
Issued | 32 years, 6 months ago (Feb. 1, 1993) |
Published | 32 years, 6 months ago (Feb. 1, 1993) |
Published Print | 32 years, 6 months ago (Feb. 1, 1993) |
@article{Cleveland_1993, title={A nondestructive method for determining the spring constant of cantilevers for scanning force microscopy}, volume={64}, ISSN={1089-7623}, url={http://dx.doi.org/10.1063/1.1144209}, DOI={10.1063/1.1144209}, number={2}, journal={Review of Scientific Instruments}, publisher={AIP Publishing}, author={Cleveland, J. P. and Manne, S. and Bocek, D. and Hansma, P. K.}, year={1993}, month=feb, pages={403–405} }