基于极化和复用的SAW传感器阵列  

SAW sensors array based on polarization and multiplexing

作　　者：张领[1] 刘文[1,2] 王磊[1] 

机构地区：[1]武汉邮电科学研究院,湖北武汉430074 [2]华中科技大学武汉光电国家实验室,湖北武汉430074

出　　处：《传感器与微系统》2012年第3期78-80,84,共4页Transducer and Microsystem Technologies

基　　金：国家创新基金资助项目(11C26224212716)

摘　　要：针对谐振型声表面波(SAW)温度传感器难以灵活构建较大规模传感器阵列的问题,结合天线技术,基于极化和复用的思想,通过频分、时分、空间角度分集和极化,研究实现较大规模的SAW传感器阵列的方法。并通过实际测试,实验结果表明:在略微增加发射天线数目的代价下,阵列规模迅速增大,阵列中的传感器元能得到有效辨识。实验结果验证了设计方法的可行性。Aiming at the problem that resonant-type surface acoustic wave（SAW） temperature sensor is difficult to construct large-scale sensor arrays, combinates antenna technology, based on idea of polarization and multiplexing, through frequency division, time division, space angle diversity and polarization, studys on the method for implementing large-scale SAW sensor array. Through the actual test, the results show that the array size increases rapidly with a slight increase in the cost of the number of transmitting antennas, the sensor element in the array can be effectively identified. Experimental results demonstrate the feasibility of the design method.

关 键 词：声表面波 传感器阵列 极化和复用 天线 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]