HF and Microwave Laboratory Improvement

高频和微波实验室改进

• 批准号: 9750676
• 负责人: Charles Smith
• 金额: $ 2.91万
• 依托单位: University of Mississippi
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-07-01 至 1999-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9750676&HistoricalAwards=false
• 关键词: HF; Microwave; Laboratory; Improvement

Pressure to use up-to-date technology mandates that network analyzer (NA) measurements be included in high-frequency (HF) laboratories for electrical engineers. Therefore, this project enhances a HF laboratory through introduction of network analyzers and through representation of standing waves on the NAs by reprogramming the controllers to maintain this proven approach to teaching. With the recent development of vector NAs that possess the capability of measuring both magnitude and phase, a new era in measurement metrology has begun. NAs based on self-contained, microprocessor-driven instruments have, to some extent, taken over the role from manual measurements. The ability to characterize a component in terms of magnitude and phase changes the methods used in design and development and, thus, how the student or practicing engineer thinks about and visualizes these processes. Vector measurements are not usually covered in undergraduate HF and microwave laboratories, primarily because of cost and a reluctance by instructors to move away from slotted line techniques because of their intuitive visual representation of standing waves. It is possible to emulate the classical standing-wave pattern on the NA display. This requires developing new computer program modules. Therefore, the intuitive advantage of the slotted line technique can be preserved even in the future laboratory environment provided through this project. With new, low-cost NAs and customized displays, students can be educated in current measurement metrology employed in industry while teaching is based on intuitive concepts of standing waves. This combined NA environment can be employed to enhance learning in laboratories that can serve as a model for future laboratory development. *

使用最新技术的压力要求将网络分析仪(NA)测量纳入电气工程师的高频(HF)实验室。因此，这个项目通过引入网络分析仪和通过重新编程控制器来表示NAS上的驻波来增强HF实验室，以保持这种经过验证的教学方法。随着具有幅值和相位测量能力的矢量NAS的最近发展，测量计量学的一个新时代已经开始。在某种程度上，基于自给自足的微处理器驱动的仪器的NAS已经取代了人工测量的角色。根据大小和阶段描述组件的能力改变了设计和开发中使用的方法，从而改变了学生或实习工程师对这些过程的思考和可视化。本科生的高频和微波实验室通常不包括矢量测量，主要是因为成本和教师不愿放弃缝隙线技术，因为它们直观地呈现了驻波。可以在NA显示器上模拟经典的驻波图案。这需要开发新的计算机程序模块。因此，即使在通过该项目提供的未来实验室环境中，缝隙线技术的直观优势也可以被保留。有了新的、低成本的NAS和定制的显示器，学生可以学习工业中使用的当前测量计量学，而教学则基于对驻波的直观概念。这种组合的NA环境可用于加强实验室中的学习，可作为未来实验室发展的典范。*