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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Hui Xie Vitard, J. Haliyo, S. Regnier, S. |
| Copyright Year | 2008 |
| Description | Author affiliation: Inst. des Syst. Intelligents et Robot., Univ. Pierre et Marie Curie - Paris, Fontenay-aux-Roses (Hui Xie; Vitard, J.; Haliyo, S.; Regnier, S.) |
| Abstract | Both the extent and accuracy of force application in atomic force microscope (AFM) nanomanipulation are significantly limited by the nonlinearity of the commonly used optical lever with a nonlinear position-sensitive detector (PSD). In order to compensate the nonlinearity of the optical lever, a nonlinear calibration method is presented. This method applies the nonlinear curve fit to a full-range position-voltage response of the photodiode, obtaining a continuous function of its voltage-related sensitivity. Thus, Interaction forces can be defined as integrals of this sensitivity function between any two responses of photodiode voltage outputs, instead of rough transformation with a single conversion factor. The lateral position-voltage response of the photodiode, a universally acknowledged puzzle, was directly characterized by an accurately calibrated force sensor composed of a tippless piezoresistive force sensor, regardless of any knowledge of the cantilevers and laser measuring system. Experiments using a rectangular cantilever (normal force constant 0.24 N/m) demonstrated that the proposed nonlinear calibration method restrained the sensitivity error of normal position-voltage responses to 3.6% and extended the force application range. |
| Starting Page | 4024 |
| Ending Page | 4029 |
| File Size | 1787790 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781424420575 |
| DOI | 10.1109/IROS.2008.4650618 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2008-09-22 |
| Publisher Place | France |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Force Sensitivity Calibration Optical sensors Photodiodes Nonlinear optics Optical imaging nonlinearity compensation Atomic force microscope nanomanipulation force calibration |
| Content Type | Text |
| Resource Type | Article |
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