传感技术学报2011，Vol.24Issue(12)：1687-1690,4.DOI:10.3969/j.issn.1004-1699.2011.12.006
基于LC谐振的无线无源应变传感器研究
Research on Wireless Passive Strain Sensor of LC Resonant Circuit
摘要
Abstract
A LC resonant circuit wireless passive strain sensor consisted of a plane spiral inductor and an interdigital capacitor was investigated. The principle of the sensor was based on the change of resonance frequency of the LC circuit with the external strain. Wireless detection was realized by electromagnetic coupling with two inductances. The results show that the resonance frequency of the LC strain sensor decreases with the increase of tension strains. The response sensitivity of the resonance frequency to strain is about 0.3 kHz/με and 0.2 kHz/με along and perpendicular to the direction of the capacitor electrode, respectively.关键词
无源无线传感器/应变:无线检测/平面螺旋电感/叉指电容/灵敏度Key words
wireless passive sensor/strain/wireless detection/plane spiral inductor/interdigital capacitor/sensitivity分类
信息技术与安全科学引用本文复制引用
豆刚,蒋洪川,张万里,彭斌..基于LC谐振的无线无源应变传感器研究[J].传感技术学报,2011,24(12):1687-1690,4.基金项目
中央高校基本科研业务费(ZYGX2010X007) （ZYGX2010X007）
四川省支撑计划(2010GZ0156) （2010GZ0156）
