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Title: Nondestructive and noncontact method for determining the spring constant of rectangular cantilevers

Abstract

We present here an experimental setup and suggest an extension to the long existing added-mass method for the calibration of the spring constant of atomic force microscope cantilevers. Instead of measuring the resonance frequency shift that results from attaching particles of known masses to the end of cantilevers, we load them with water microdrops generated by a commercial inkjet dispenser. Such a device is capable of generating drops, and thus masses, of extremely reproducible size. This makes it an ideal tool for calibration tasks. Moreover, the major advantage of water microdrops is that they allow for a nearly contactless calibration: no mechanical micromanipulation of particles on cantilevers is required, neither for their deposition nor for removal. After some seconds the water drop is completely evaporated, and no residues are left on the cantilever surface or tip. We present two variants: we vary the size of the drops and deposit them at the free end of the cantilever, or we keep the size of the drops constant and vary their position along the cantilever. For the second variant, we implemented also numerical simulations. Spring constants measured by this method are comparable to results obtained by the thermal noise method, as wemore » demonstrate for six different cantilevers.« less

Authors:
; ; ;  [1];  [2];  [2]
  1. Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz (Germany)
  2. (Germany)
Publication Date:
OSTI Identifier:
20953427
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 78; Journal Issue: 4; Other Information: DOI: 10.1063/1.2720727; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ATOMIC FORCE MICROSCOPY; CALIBRATION; DEPOSITION; DEPOSITS; NOISE; NONDESTRUCTIVE TESTING; SIMULATION; SURFACES; WATER

Citation Formats

Golovko, Dmytro S., Haschke, Thomas, Wiechert, Wolfgang, Bonaccurso, Elmar, Department of Simulation, University of Siegen, Am Eichenhang 50, 57076 Siegen, and Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz. Nondestructive and noncontact method for determining the spring constant of rectangular cantilevers. United States: N. p., 2007. Web. doi:10.1063/1.2720727.
Golovko, Dmytro S., Haschke, Thomas, Wiechert, Wolfgang, Bonaccurso, Elmar, Department of Simulation, University of Siegen, Am Eichenhang 50, 57076 Siegen, & Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz. Nondestructive and noncontact method for determining the spring constant of rectangular cantilevers. United States. doi:10.1063/1.2720727.
Golovko, Dmytro S., Haschke, Thomas, Wiechert, Wolfgang, Bonaccurso, Elmar, Department of Simulation, University of Siegen, Am Eichenhang 50, 57076 Siegen, and Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz. Sun . "Nondestructive and noncontact method for determining the spring constant of rectangular cantilevers". United States. doi:10.1063/1.2720727.
@article{osti_20953427,
title = {Nondestructive and noncontact method for determining the spring constant of rectangular cantilevers},
author = {Golovko, Dmytro S. and Haschke, Thomas and Wiechert, Wolfgang and Bonaccurso, Elmar and Department of Simulation, University of Siegen, Am Eichenhang 50, 57076 Siegen and Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz},
abstractNote = {We present here an experimental setup and suggest an extension to the long existing added-mass method for the calibration of the spring constant of atomic force microscope cantilevers. Instead of measuring the resonance frequency shift that results from attaching particles of known masses to the end of cantilevers, we load them with water microdrops generated by a commercial inkjet dispenser. Such a device is capable of generating drops, and thus masses, of extremely reproducible size. This makes it an ideal tool for calibration tasks. Moreover, the major advantage of water microdrops is that they allow for a nearly contactless calibration: no mechanical micromanipulation of particles on cantilevers is required, neither for their deposition nor for removal. After some seconds the water drop is completely evaporated, and no residues are left on the cantilever surface or tip. We present two variants: we vary the size of the drops and deposit them at the free end of the cantilever, or we keep the size of the drops constant and vary their position along the cantilever. For the second variant, we implemented also numerical simulations. Spring constants measured by this method are comparable to results obtained by the thermal noise method, as we demonstrate for six different cantilevers.},
doi = {10.1063/1.2720727},
journal = {Review of Scientific Instruments},
number = 4,
volume = 78,
place = {United States},
year = {Sun Apr 15 00:00:00 EDT 2007},
month = {Sun Apr 15 00:00:00 EDT 2007}
}