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论文类型：期刊论文

发表时间：2009-11-01

发表刊物：MECHANICAL SYSTEMS AND SIGNAL PROCESSING

收录刊物：SCIE、EI、Scopus

卷号：23

期号：8

页面范围：2687-2698

ISSN号：0888-3270

关键字：Six-component force/torque sensor; Lozenge and square arrangement; Piezoelectric quartz crystal; Calibration experiment; Natural frequency

摘要：This paper proposes a novel piezoelectric six-component force/torque sensor with four-point supporting structure, and makes research on force-sensing element's spatial arrangement of the novel sensor. Two kinds of different spatial arrangements are advanced, lozenge and square arrangement. The mathematical models are built and calculated. The influence on using performance of the two kinds of different spatial arrangements of the sensor is analyzed by FEM (ANSYS software). In order to investigate the validity of the proposed method, a prototype of piezoelectric six-component force/moment sensor is developed with two kinds of different spatial arrangements, and characteristic tests of the piezoelectric six-component force/moment sensor are performed. The test shows that both of the different spatial arrangement sensors could be used to measure six-component force/torque, but the square arrangement piezoelectric six-component force/moment sensor is more suitable for measurement of six-component force/torque on axis. The interference errors of square arrangement sensor are less than 5%, which are lower than those of the lozenge arrangement sensor. The natural frequencies in six directions are analyzed and discussed. Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved.