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Sensors 2014, 14(7), 12093-12103; doi:10.3390/s140712093

Software for Correcting the Dynamic Error of Force Transducers

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Received: 9 January 2014 / Revised: 26 May 2014 / Accepted: 26 June 2014 / Published: 7 July 2014
(This article belongs to the Section Physical Sensors)
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Software which corrects the dynamic error of force transducers in impact force measurements using their own output signal has been developed. The software corrects the output waveform of the transducers using the output waveform itself, estimates its uncertainty and displays the results. In the experiment, the dynamic error of three transducers of the same model are evaluated using the Levitation Mass Method (LMM), in which the impact forces applied to the transducers are accurately determined as the inertial force of the moving part of the aerostatic linear bearing. The parameters for correcting the dynamic error are determined from the results of one set of impact measurements of one transducer. Then, the validity of the obtained parameters is evaluated using the results of the other sets of measurements of all the three transducers. The uncertainties in the uncorrected force and those in the corrected force are also estimated. If manufacturers determine the correction parameters for each model using the proposed method, and provide the software with the parameters corresponding to each model, then users can obtain the waveform corrected against dynamic error and its uncertainty. The present status and the future prospects of the developed software are discussed in this paper.
Keywords: inertial force; dynamic force; dynamic calibration; Levitation Mass Method; error correction inertial force; dynamic force; dynamic calibration; Levitation Mass Method; error correction
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Miyashita, N.; Watanabe, K.; Irisa, K.; Iwashita, H.; Araki, R.; Takita, A.; Yamaguchi, T.; Fujii, Y. Software for Correcting the Dynamic Error of Force Transducers. Sensors 2014, 14, 12093-12103.

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