期刊
REVIEW OF SCIENTIFIC INSTRUMENTS
卷 88, 期 12, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4991604
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This paper investigates the benefit of active damping by an analog Q-control circuit for measuring fast force-distance curves in atomic force microscopy. By active damping of the cantilever oscillation after snap-off, the down-ring time-constant is reduced significantly from 385 mu s to 23 mu s. Experimental results demonstrate that the number of force-distance curves per second can be increased by a factor of more than 30. Published by AIP Publishing.
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