CAREER: Educational Outreach and Remotely Queried, In-Situ Chemical Sensors

9875104GrimesThe fundamental research and educational objectives of this CAREER proposal are concerned with sensing and sensor related technologies.The research component of this CAREER proposal focused on developing two new，different，remote query sensing technologies capable to obtain chemical concentration information from small，in situ sensors over a range of several meters.在这项提案的四年过程中，PJ寻求扩展和开发不同的传感技术，最终为科学界提供一个传感器技术工具箱，可以根据具体应用的需要进行选择。这种技术将在环境、制造业和医疗监测方面有很大的用途。根据这项CAREER提案，将开发两种新的远程查询化学传感器技术：（1）磁声化学传感器，其中化学识别层的质量变化导致由暴露于交流磁场的磁致伸缩薄膜发射的共振声频的变化，以及（2）基于电磁的谐振天线化学传感器，其中化学识别层的介电常数或体积的变化导致传感器的谐振电磁频率的变化。通过监测传感器的频率响应，而不是振幅，可以避免由于传感器在询问场内对准而引起的杂散响应。本CAREER建议书的教育部分有几个目标。第一个是在肯塔基州大学（联合王国）开设一门新的跨学科课程，题为“传感和传感器技术”，学生在该课程中学习基于生物和技术的传感手段。该课程将包括一个重要的实验室/独立研究部分，学生有机会建立自己的传感器和传感系统。这个班将首先教授1998年秋季学期作为一个荣誉班，开放给所有肯塔基州大学的荣誉学生在所有级别和所有学科。然后，该课程将转变为高级课程，通过电气工程系提供，以多学科为重点，并于1999年春季学期首次提供 *

9875104GrimesThe fundamental research and educational objectives of this CAREER proposal are concerned with sensing and sensor related technologies.The research component of this CAREER proposal focuses on developing two new, different, remote query sensing technologies able to obtain chemical concentration information from small, in-situ sensors over a range of several meters. During the four-year course of this proposal the PJ seeks to extend and develop the different sensing technologies to ultimately provide the scientific community with a toolbox of sensor technologies that can be chosen as needed for a specific application. Such technology would find great use in environmental, manufacturing, and medical monitoring.Two new remote-query chemical sensor technologies will be developed under this CAREER proposal: (1) Magnetoacoustic chemical sensors, where the change in mass of a chemical recognition layer results in a change in the resonant acoustic frequency emitted by a magnetostrictive thin film exposed to an ac magnetic field, and (2) Electromagnetic-based resonant antenna chemical sensors where changes either in the dielectric constant or volume of a chemical recognition layer result in changes of the resonant electromagnetic frequency of the sensor. By monitoring the frequency response of the sensors, rather than the amplitude, spurious responses due to sensor alignment within the interrogation field can be avoided.There are several objectives per the educational component of this CAREER proposal. The first is development of a new inter-disciplinary course at the University of Kentucky (UK), entitled Sensing and Sensor Technologies, where students learn about biological and technological based sensing means. The class will incorporate a significant laboratory/independent research component where students have the opportunity to build their own sensors and sensing systems. This class will first be taught Fall Semester 1998 as an Honors class, open to all University of Kentucky Honors students at all levels and of all disciplines. The class will then be transformed to a Senior level class, offered through the Electrical Engineering Department, that is taught with a multi-disciplinary emphasis, and offered for the first time Spring Semester 1999***