Auto Calibration Method for Cable-Driven Parallel Robots Using Force Sensors
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This paper presents an auto calibration method for overconstrained cable-driven parallel robots using internal position and force sensors. The consideration of cable forces is necessary in order to regard the cable elasticity. A calibration workflow is proposed and implemented including pose selection, measurement, and parameter adjustment. The calibration procedure is not limited to the geometrical parameters, but also allows to identify force related parameters such as the cable stiffness and platform mass. The calibration results are shown for an unknown parameter set and the influence of sensor noise on the calibration results is presented.
Key wordsCable-driven parallel robot auto calibration least squares force sensors
This work was supported by the FhG Internal Programs under Grant No. WISA 823 244.
- 2.Hollerbach, J.M., Wampler, C.W.: The calibration index and taxonomy for robot kinematic calibration methods. Int. J. Robot. Res. 15, (1996) Google Scholar
- 3.Merlet, J.P., Daney, D.: A new design for wire-driven parallel robot. In: 2nd Int. Congress, Design and Modelling of Mechanical Systems. Monastir (2007) Google Scholar
- 4.Schiehlen, W., Eberhard, P.: Technische Dynamik, Modelle für Regelung und Simulation. Teubner (1986) Google Scholar
- 5.Verhoeven, R.: Analysis of the workspace of tendon-based Stewart platforms. Ph.D. thesis, University of Duisburg-Essen (2004) Google Scholar