Calibration and uncertainty analysis for multicomponent force/torque measurements

Abstract

Abstract Many applications in research and industry require accurate measurements of force and torque vectors G. Schicker, R. Wegener. Drehmoment richtig messen. Hottinger-Baldwin-Messtechnik, 2002; R. Schwartz. Teil B: Sensoren, Kraft, Masse, Drehmoment. In H.-J. Gevatter and U. Grünhaupt, editors, Handbuch der Mess- und Automatisierungstechnik in der Produktion, VDI-Buch, pages 55–92. Springer, Dordrecht, 2006. as well as their time dependency. This measurement task can be solved by using multicomponent sensors. Despite of their wide distribution there is a lack of official guides for their calibration D. Schwind and H. Raabe. A new Calibration Procedure for Multicomponent transducers. XX IMEKO World Congress, Metrology for Green Growth, Busan, Republic of Korea, September 9–12, 2012. and methods for evaluation of measurement uncertainty. In many applications statically calibrated mulicomponent sensors are used for measurement of dynamic quantities Y.-K. Park, R. Kumme, and D.-I. Kang. Dynamic investigation of a binocular six-component force-moment sensor. Measurement Science and Technology, 13(8):1311–1318, 2002. which causes severe deviations in measurement when the quantity to be measured has a frequency near or above resonance frequency of the transducer. This paper describes the static calibration and a method for uncertainty analysis using the example of a six-component sensor for force and torque. Subsequently the dynamic calibration of such a sensor is discussed. Based on the results of the dynamic calibration an approach for evaluation of dynamic measurement uncertainty is applied.