SST: Micromachined Sensors for the Direct Measurement of Wall Shear Stress

SST：用于直接测量壁剪应力的微机械传感器

• 批准号: 0428593
• 负责人: Mark Sheplak
• 金额: --
• 依托单位: University of Florida
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-09-01 至 2008-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0428593&HistoricalAwards=false
• 关键词: SST; Micromachined; Sensors; Direct; Measurement

Abstract0428593Mark SheplakUniversity of FloridaA 3-year research and curriculum project in the development and use of silicon-micromachined, floating-element, shear-stress sensors is carried out at the University of Florida. Specifically, a new research and education thrust is focused on the design, fabrication, rigorous characterization, and use of miniature floating-element sensors that enable the direct, quantitative measurement of time-resolved, fluctuating wall shear stress. Such measurement technology is crucial to gain a fundamental understanding of and ultimately to enable the control of the three-dimensional, unsteady separated flow phenomena that prevents the controllable flight of Micro Air Vehicles (MAVs). The accurate measurement of fluctuating wall shear stress is currently not possible and the realization of this capability not only inhibits MAV development, but impacts a broad application spectrum that ranges from fundamental scientific research to biomedical applications. The focus of the education plan is to prepare students for engineering in the 21st century through the incorporation of interdisciplinary design and problem-solving techniques into both the undergraduate and graduate curriculum. Specifically, a laboratory course and several course modules that focus on the development of interdisciplinary problem-solving skills are established. In addition, educational opportunities for students will be established via government laboratory internships and distance-learning community outreach. This project is supported under the Sensors Initiative NSF 04-522.

摘要0428593马克·谢普拉克佛罗里达大学佛罗里达大学进行了一项为期3年的研究和课程项目，开发和使用硅微机械、浮动元件、剪切应力传感器。 具体来说，一个新的研究和教育重点是设计，制造，严格的表征，并使用微型浮动元件传感器，使直接，定量测量时间分辨，波动壁面剪应力。 这种测量技术对于从根本上了解并最终控制阻碍微型飞行器（MAV）可控飞行的三维非定常分离流现象至关重要。波动壁面剪应力的精确测量目前是不可能的，实现这种能力不仅抑制了MAV的发展，但影响广泛的应用范围，从基础科学研究到生物医学应用。 教育计划的重点是通过将跨学科设计和解决问题的技术纳入本科和研究生课程，为学生在21世纪世纪的工程做好准备。 具体而言，建立了一个实验室课程和几个课程模块，重点是跨学科解决问题的技能的发展。 此外，还将通过政府实验室实习和远距离学习社区外联活动为学生创造教育机会。该项目得到了传感器倡议NSF 04 - 522的支持。