A New Family of Acoustic Emission Sensors for Damage Source Identification

CMS-0624985加州大学史蒂文·D·格拉泽)该项目将使用声发射方法来开发检查和监测工具，从而能够在故障之前直接检测结构劣化。将开发新的解释算法和传感器设计，以解决当前的困难，如在不同的介质中工作，使用较少的传感器，以及将传感器放置在远离损伤源的地方。该项目重点解决目前没有传感器的三个问题。它们是：i-开发一种对粒子位移敏感的微型但硬化的可嵌入高保真声发射传感器；ii-开发一种微型三分量高保真声发射传感器；iii-开发一种专用于低声阻抗材料的高保真声发射传感器。我们将使用将为他的欧盟项目制造的大规模试验台和实际现场监控，并获得专门为AE构建的具有板载处理能力的无线平台。

AbstractCMS- 0624985 Steven D. Glaser, University of CaliforniaBrekeley)This project will use acoustic emission methods to develop tools for inspection and monitoring, which allows direct detection of structural deterioration prior to failure. New interpretation algorithms and transducer designs will be developed to account for current difficulties, such as working in a heterogeneous media, using few sensors, and placing the sensors far from the damage source.The project focuses on three problems for which no sensor currently exists. They are:i - development of a micro but hardened embeddible high-fidelity AE sensor sensitive to particle displacements;ii - development of a micro three-component high-fidelity AE sensor;iii - development of a high fidelity AE sensor specially for low acoustic impedance materials.The project will leverage close ties between the P.I. and Prof. Christian Grosse of Stuttgart University, Germany. We will use the large scale test beds and actual field monitoring that will be made for his EU project, and gain a wireless platform with onboard processing power, built specifically for AE.