声表面波传感器阵列识别毒剂研究  

Surface Acoustic Wave Sensor Array for Chemical Warfare Agents Recognition

作　　者：张天[1] 陈传治[1] 左伯莉[1] 马晋毅[2] 李伟[1] 

机构地区：[1]防化指挥工程学院化学防护系,北京102205 [2]四川压电与声光技术研究所,重庆400060

出　　处：《压电与声光》2009年第2期154-156,共3页Piezoelectrics & Acoustooptics

摘　　要：以聚环氧氯丙烷(PECH)、硅酮(SE-30)和两种氢键酸性聚硅氧烷(BSP3、PTFP)为敏感膜制备了对毒剂敏感的声表面波(SAW)传感器阵列。基于这种SAW传感器阵列对沙林、芥子气和甲基膦酸二甲酯进行了检测,并结合概率神经网络(PNN)对检测结果进行识别,识别率达90%,对上述3种气体的检出限分别达到0.30 mg/m3、0.30 mg/m3和0.07 mg/m3。A novel chemical warfare agents detection system based on surface acoustic wave （SAW） sensor array was developed. The sensor array was coated with polyepiehlorohydrin （PECH）, polymethylsiloxane （SE-30） and two kinds of hydrogen-bond acidic polymers （BSP3 and PTFP） respectively. And it was used to detect and identify sarin（GB）, mustard gas（HD）and dimethyl methylphosphonate（DMMP）. The signals obtained from the sensors were analyzed with Probabilistic Neural Network（PNN）. The results showed that the identification rate was up to 90% and the detection limit of the three gases was up to 0.30 mg/m3 , 0.30 mg/m3 and 0.07 mg/m3 respectively.

关 键 词：声表面波 传感器阵列 模式识别 化学战剂 

分 类 号：TN656.9[电子电信—电路与系统]