无源无线声表面波谐振器温度传感系统硬件构成  

The Hardware Composing of Wireless Temperature Sensing System Using Passive SAW Resonator

作　　者：王军峰[1] 李平[1] 周志坤[1] 郑敏[1] 杨进[1] 

机构地区：[1]重庆大学光电工程学院光电技术及系统教育部重点实验室,重庆400044

出　　处：《仪器仪表学报》2004年第z3期155-157,182,共4页Chinese Journal of Scientific Instrument

基　　金：国家自然科学基金资助项目(69974044)

摘　　要：针对不可接触环境下的参数检测的问题,通过分析声表面波谐振器的传感原理和传统传感系统的构成,介绍了一种基于声表面波谐振器的无源无线温度传感系统,系统采用一次变频的构成方式,并引入了计算机控制和数字信号处理技术。相对于传统系统构成,本系统的构成更简洁、可操作性和灵活性更强。给出了该系统的具体实现方案。温度实验反映了该系统构成的可行性。Against the problem of detecting parameters of circumstances which are difficult to contact,based on analysis of the sensing principle of surface acoustic wave resonator and the composing of traditional sensing systems,a passive wireless sensing system using a surface acoustic wave resonator is described.First-conversion,computer-control and digital signal processing are adopted in the system.Compared with traditional systems,the system shows the advantages of concision, maneuverability and agility.And the design of the system is also presented.Temperature experiment shows feasibility of the composing of the system.

关 键 词：声表面波 谐振器 无源无线传感 一次变频 

分 类 号：TH7-55[机械工程—仪器科学与技术]