Engineering Research Equipment Grant: Ultrasonic Doppler Velocimeter

工程研究设备资助：超声波多普勒测速仪

• 批准号: 9007496
• 负责人: Harri Kytomaa
• 金额: $ 1.92万
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-06-01 至 1992-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9007496&HistoricalAwards=false
• 关键词: Engineering; Research; Equipment; Grant; Ultrasonic

An ultrasonic Doppler velocimeter will be purchased and modified to measure velocity distributions in various slurry and sediment flows. A proof of concept prototype of this device has been constructed and shown to work at a solids volume fraction of 50% and a penetration of 100mm in glass beads, water mixture. The funds will be used to construct a working system for the particular slurry being studied, in terms of the choice of wave length and operating mode. The measurements performed with the ultrasonic device will be compared to the results obtained with another non-intrusive method, namely magnetic resonance imaging. The proposed ultrasonic velocimeter will provide a non- intrusive tool to measure in real time the velocity distribution of solid phase in highly concentrated solid- liquid flows.

将购买并改进超声多普勒测速仪，以测量各种浆液和沉积物流的速度分布。该装置的概念验证原型已经构建，并显示在固体体积分数为50%和渗透100毫米的玻璃珠，水混合物中工作。这些资金将用于为所研究的特定泥浆构建一个工作系统，以选择波长和操作模式。用超声波设备进行的测量将与另一种非侵入性方法（即磁共振成像）获得的结果进行比较。所提出的超声测速仪将为实时测量高浓度固液流动中固相的速度分布提供一种非侵入式的工具。