SBIR Phase I:Acoustic Emission and Stress Sensor for Civil Structures

0339653这个小企业创新研究第一阶段项目涉及一个新的布拉格光栅为基础的技术，包括光纤和集成光学聚合物波导的发展。所提出的传感器系统可用于声发射监测和检测大型土木结构的钢和混凝土，如桥梁，大坝，塔，高速公路和建筑物。混合布拉格光栅传感器系统有望在从DC到2MHz的宽频率范围内对应力波表现出高灵敏度。所提出的技术可以扩展到包括不断增长的市场所涉及的声发射，超声波检测，医疗超声成像，和其他无损检测设备的检测技术。 可以利用集成光波导技术的二级市场部门是光交叉连接和光纤仪器。

0339653This Small Business Innovation Research Phase I project concerns the development of a new Bragg grating-based technology consisting of optical fibers and integrated optical polymer waveguides. The proposed sensor system can be used for acoustic emission monitoring and inspection of large civil structures made of steel and concrete such as bridges, dams, towers, freeways, and buildings. The hybrid Bragg grating sensor system is expected to demonstrate high sensitivity to stress waves in a wide frequency range, fromDC to 2MHz. The proposed technology can be extended to include the growing market involved in acoustic emission, ultrasonic testing, medicalultrasonic imaging, and other NDT equipment testing technology. A secondary market sector that can utilize the integrated optical waveguide technology is optical cross connect and fiber optic instrumentation.