传感技术学报2017，Vol.30Issue(6)：841-846,6.DOI:10.3969/j.issn.1004-1699.2017.06.007
表面四电极含金属芯压电纤维的冲击振动传感特性研究
Vibration Sensing Properties of a Metal Core Piezoelectric Fiber with Four Electrodes on the Surface
摘要
Abstract
The four electrode metal core piezoelectric fibers( FMPF) impact vibration sensor that can perceive a vi-bration perception of the external surface is made through imitating the structure and function of insect's hair sensil-la. Piezoelectric ceramic fiber embryo containing platinum core was prepared by using dry pressing method and was treated by high temperature sintering, coating the surface of electrode polarization, high temperature polarization, then FMPF impact vibration sensor is made.The theoretical model of the FMPF impact vibration sensor of the canti-lever beam is established and the relationship between the sensing signal and the angle and amplitude of the shock vibration is analyzed based on the piezoelectric equations and vibration theory. The FMPF is fixed on the substrate, and the experimental system is built,and the response of FMPF to the impact vibration is tested,and the theoretical model is verified. The results show that the amplitude of the sensing signal and the shock vibration of FMPF is line-ar,and the direction of the"8"-shaped relationship. The conclusion is drawn that the FMPF sensor can measure the magnitude and direction of the shock vibration.关键词
压电纤维/冲击振动/传感器/干压成型法/表面电极Key words
piezoelectric fiber/impact vibration/sensor/dry pressing method/surface electrode分类
信息技术与安全科学引用本文复制引用
孙凯旋,张弋,边义祥,夏咸龙,吴志学..表面四电极含金属芯压电纤维的冲击振动传感特性研究[J].传感技术学报,2017,30(6):841-846,6.基金项目
国家自然科学基金项目(51275447) （51275447）
江苏省研究生实践创新计划项目(SJLX160589) （SJLX160589）
