EXP-SA: A Lateral Field Excited Acoustic Wave Sensor for Peroxide-Based Explosives

0730753 Vetelino该提案涉及开发现场可部署的过氧化基爆炸物探测器。该探测器由AT切石英压电敏感元件(S)和相关的传感器电子组成，表面涂覆有选择性吸附聚合物膜(S)。智能优点：候选薄膜将在LFE传感平台的石英表面进行功能化处理，并在模拟条件下暴露于过氧化物基IED和用于制造它们的材料。将测量传感器的关键元件属性，如响应水平、响应时间、检测极限、分辨率和线性，并通过将传感器暴露在已知浓度的化学模拟物中来确定选择性。此外，还将测量每个传感器元件的导纳，以隔离薄膜中的机械和电学性质变化，从而识别每个分析物的独特化学特征，并提供更高的选择性。传感器电子器件将被设计和制造，从而产生一个手持电子单元。传感器电子器件将同时处理五个LFE传感元件的输出，并提供数字读数。最后，原型传感器单元将被组装和测试，以检测PBE和制造PBE的常用材料。广泛影响：用于PBE的探测器的开发将证明，缅因州大学的尖端研究将有利于国土安全和军方。PBE现场可部署探测器的成功演示将推动小型传感器企业开发类似传感器并将其商业化，用于国土安全、军事、医疗、农业、汽车和环境应用。

0730753VetelinoThe proposal deals with the development of field deployable detector for peroxide-based explosives. The detector consists of AT-cut quartz piezoelectric sensing element(s) coated with selectively sorbent polymer film(s) and associated sensor electronics.Intellectual Merit:The candidate films will be functionalized on the quartz surface of the LFE sensing platform and exposed to peroxide-based IEDs and the materials used to fabricate them under simulated conditions. Critical sensor element properties such as the response level, response time, detection limit, resolution, and linearity will be measured and the selectivity will be determined by exposing the sensor to known concentrations of chemical simulants. In addition the admittance of each sensor element will be measured to isolate mechanical and electrical property changes in the film so as to identify the unique chemical signature of each analyte and provide a higher degree of selectivity. Sensor electronics will be designed and fabricated resulting in a handheld electronic unit. The sensor electronics will simultaneously process the output from five LFE sensing elements and provide a digital readout. Finally, the prototype sensor unit will be assembled and tested for the detection of PBEs and the materials commonly used to fabricate them.Broader Impacts:The development of a detector for PBEs will demonstrate that cutting edge research at the University of Maine will benefit homeland security, the military. A successful demonstration of a field deployable detector for PBEs will motivate the development and commercialization, by small sensor businesses, of similar sensors for homeland security, military, health, agricultural, automotive, and environmental applications.