A New Family of Acoustic Emission Sensors for Damage Source Identification

用于损伤源识别的新型声发射传感器系列

• 批准号: 0624985
• 负责人: Steven Glaser
• 金额: --
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-09-01 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0624985&HistoricalAwards=false
• 关键词: New; Family; Acoustic; Emission; Sensors

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.

AbstractCMS- 0624985 Steven D. Glaser，加利福尼亚大学）该项目将使用声学发射方法开发用于检查和监测的工具，从而可以直接检测到失败之前的结构降低。 将开发新的解释算法和换能器设计，以解决当前的困难，例如在异质媒体中工作，使用很少的传感器，并将传感器远离损坏源。该项目侧重于目前不存在传感器的三个问题。 它们是：I-微型但坚固的可嵌入的高油性AE传感器对粒子位移敏感的敏感； ii-微型三组分高效率AE传感器的发展； III-高保真AE AE传感器的开发，特别是对低声阻抗材料的高忠诚度AE。以及德国斯图加特大学的克里斯蒂安·格罗斯（Christian Grosse）教授。我们将使用将为他的欧盟项目进行的大规模测试床和实际的现场监控，并获得具有专门为AE构建的机载处理能力的无线平台。