Archivio Istituzionale della RicercaA commercial linear actuator equipped with a 0.1 μm resolution encoder was used as a contact displacement sensor with adjustable force. The accuracy of the position reading of the actuator was evaluated from experimental data taking into account the uncertainty contributions. The tests consisted of length measurements of grade 0 steel gauge blocks. Measurements with different values of contact force were performed to assess its influence. A statistical analysis of the experimental data was performed to support the accuracy assessment. Systematic effects were identified and corrected. An expanded uncertainty (k=2) lower than 1 μm was estimated.
Accuracy assessment of an industrial actuator / Dalla Costa, Giuseppe; Genta, Gianfranco; Barbato, Giulio; De Chiffre, Leonardo; Hansen, Hans Norgaard. - ELETTRONICO. - 62:(2017), pp. 417-422. (Intervento presentato al convegno 10th CIRP Conference on Intelligent Computation in Manufacturing Engineering - CIRP ICME '16 tenutosi a Ischia (Italia) nel 20- 22 luglio 2016) [10.1016/j.procir.2016.06.119].
Accuracy assessment of an industrial actuator
GENTA, GIANFRANCO;BARBATO, Giulio;
2017
Abstract
A commercial linear actuator equipped with a 0.1 μm resolution encoder was used as a contact displacement sensor with adjustable force. The accuracy of the position reading of the actuator was evaluated from experimental data taking into account the uncertainty contributions. The tests consisted of length measurements of grade 0 steel gauge blocks. Measurements with different values of contact force were performed to assess its influence. A statistical analysis of the experimental data was performed to support the accuracy assessment. Systematic effects were identified and corrected. An expanded uncertainty (k=2) lower than 1 μm was estimated.
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https://hdl.handle.net/11583/2671313
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