传感技术学报2016，Vol.29Issue(3)：320-325,6.DOI:10.3969/j.issn.1004-1699.2016.03.003
埋入混凝土式压电陶瓷声-压特性的路径映射分析
Analysis on the Mapping Results onto a Path to the Sound-Pressure Characteristics of the Piezoelectric Ceramic Embedded in Concrete
摘要
Abstract
Piezoelectric smart concrete module is consist of concrete-embedded piezoelectric ceramics,which can perform the real-time health status detection for concrete structures by applying the inverse voltage effect of piezoelec⁃tric ceramic. Targeting at improving the data reliability in the receiving terminal,a path mapping method of detecting the pressure of the transmitting supersonic energy signals is employed to study the energy propagation law of the piezoelectric ceramics in concrete in this paper. This method is a post-processing technique based on the interpola⁃tion operation of shape function,which could map the position information of a smart module into any specified virtual path. Furthermore,by extracting the supersonic pressure from different energy paths,the transmission law of super⁃sonic energy of piezoelectric ceramics embedded in concrete can be obtained. The results of experiment indicate that the energy closed to the vibration source is the maximum of the corresponding supersonic field,the energy in the radi⁃al decays rapidly,the energy supersonic pressure values and the mapping radius obey to the power attenuation charac⁃teristic. Moreover,the analysis of supersonic pressure values varying in different mapping angles also points out that the supersonic pressure values and the mapping angles also obey to decrement features except in the radial direction.关键词
压电陶瓷/声压/路径映射/径向方向/映射角度Key words
piezoelectric ceramic/sound pressure/path mapping/the radial direction/the mapping angle分类
数理科学引用本文复制引用
李鹏,陈雨,邓洪敏,赵爱荣,姜敏..埋入混凝土式压电陶瓷声-压特性的路径映射分析[J].传感技术学报,2016,29(3):320-325,6.基金项目
国家自然科学青年基金（50808186）；重庆市自然科学基金（CSTC，2008BB0155）；国家自然科学基金 （）
