传感技术学报2017，Vol.30Issue(11)：1643-1646,4.DOI:10.3969/j.issn.1004-1699.2017.11.005
LC无源无线气体传感器的制备及对NH3气敏特性的研究
Preparation of LC Wireless Passive Gas Sensor and Study on the Gas Sensing Properties of Ammonia Gas
摘要
Abstract
By using acidified carbon nanotubes doped with polyaniline as gas sensitive material of the sensor. The prepared gas sensitive material is coated with the inductance capacitance coupled circuit which is prepared by screen printing technology,fabricating LC resonant passive gas sensor. In the NH3atmosphere,we can test the pre-pared gas sensor so as to achieve the non-contact measurement in a closed environment.Via focusing on the analysis on the influence of the concentration of NH3gas to the resonant frequency of the sensor and the response recovery time at room temperature,the results show that the sensitivity of the sensor is 4.499 MHz at 300×10-6.关键词
无线无源传感器/碳纳米管/气敏特性/LC谐振Key words
wireless passive sensor/carbon nanotubes/gas sensing properties/LC resonance分类
信息技术与安全科学引用本文复制引用
郭晓威,谭秋林,郭彦杰,周天浩,翟成瑞..LC无源无线气体传感器的制备及对NH3气敏特性的研究[J].传感技术学报,2017,30(11):1643-1646,4.基金项目
国家自然科学基金项目(61471324) （61471324）
