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论文类型：期刊论文

发表时间：2013-01-01

发表刊物：Sensors and Transducers

收录刊物：EI、Scopus

卷号：151

期号：4

页面范围：54-62

ISSN号：17265479

摘要：In this paper, the measurement principle of a parallel six-axis heavy force sensor based on the Stewart structure is presented to detect the multi-dimensional variable heavy forces in the process of extreme manufacturing. Firstly, load sharing ratio of six-axis heavy force is defined to denote the effect of load sharing. Then, with piezoelectric quartz as the pressure-sensitive component, a six-axis heavy force senor with high stiffness and good linearity based on the Stewart structure is designed. As to the problem that it is difficult to pre-tighten the measuring limbs, a six-site local pre-tightening method is presented. Finally, static calibration experiments of the sensor are conducted on the established calibration platform. Experiment results verify the feasibility and validity of the sensor, which has a large measurement range, good linearity, and can be widely used in the real-time measurement of multi-dimensional variable heavy forces in extreme environments. ? 2013 IFSA.