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Indexed by:会议论文

Date of Publication:2018-01-01

Included Journals:CPCI-S

Volume:1971

Key Words:ELM; BP; Calibration; Piezoelectric sensor; Load sharing dynamometer; Various loading point

Abstract:The relationship between input and output of load sharing dynamometer is seriously non-linear in different loading points of a plane, so it's significant for accutately measuring force to precisely calibrate the non-linear relationship. In this paper, firstly, based on piezoelectric load sharing dynamometer, calibration experiments of different loading points are performed in a plane. And then load sharing testing system is respectively calibrated based on BP algorithm and ELM (Extreme Learning Machine) algorithm. Finally. the results show that the calibration result of ELM is better than BP for calibrating the non-linear relationship between input and output of loading sharing dynamometer in the different loading points of a plane. which verifies that ELM algorithm is feasible in solving force non-linear measurement problem.