摘要
压电陶瓷纤维(MPFs)是一种新型的智能材料。该文简述了其几何形状、制备工艺,从理论上分析了其应变传感原理。实验研究了MPFs的准静态、动态应变传感特性。研究结果表明,MPFs传感器灵敏度很高,静态响应的线性度很好,动态响应则有非线性和迟滞现象。最后探讨了MPFs的几何尺寸对传感性能的影响,分析了迟滞现象产生的原因。
MPFs （Metal-core Piezoelectric Fibers） are a new type of functional material. Its geometrical shape and fabrication process were introduced in this paper. The strain sensing principle of MPFs was investigated theoretically. The quasi-static and dynamic strain sensing properties of MPF sensors were studied experimentally. The results indicated that the sensitivities of MPF sensors were very high and the linearity of its static response was good, but there were non-linearity and hysteresis between the strain and output voltage of MPFs in the dynamic response. The effect of MPF size on its strain sensing properties and the cause of hysteresis were also investigated.
出处
《压电与声光》
CSCD
北大核心
2008年第6期734-737,共4页
Piezoelectrics & Acoustooptics
基金
国家"八六三"高新技术计划基金资助项目(No.2007AA03Z104)
