Software for Correcting the Dynamic Error of Force Transducers
Naoki Miyashita,
Kazuhide Watanabe,
Kyouhei Irisa,
Hiroshi Iwashita,
Ryosuke Araki,
Akihiro Takita,
Takao Yamaguchi,
Yusaku Fujii
Affiliations
Naoki Miyashita
Education Program of Electronics and Informatics, Mathematics and Physics, Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
Kazuhide Watanabe
Education Program of Electronics and Informatics, Mathematics and Physics, Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
Kyouhei Irisa
Education Program of Electronics and Informatics, Mathematics and Physics, Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
Hiroshi Iwashita
Education Program of Electronics and Informatics, Mathematics and Physics, Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
Ryosuke Araki
Education Program of Electronics and Informatics, Mathematics and Physics, Graduate School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
Akihiro Takita
Division of Mechanical Science and Technology, School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
Takao Yamaguchi
Division of Mechanical Science and Technology, School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
Yusaku Fujii
Division of Mechanical Science and Technology, School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
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.
