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）测量包括在电气工程师的高频（HF）实验室中。 因此，该项目通过引入网络分析仪并通过对NAS上的常规浪进行代表来增强HF实验室，并通过重新编程控制器来维护这种验证的教学方法。 随着载体NA的最新发展具有测量幅度和相位的能力，测量计量学的新时代已经开始。 NAS基于独立的，微处理器驱动的仪器在某种程度上从手动测量中接管了该作用。 以幅度和相位来表征组件的能力改变了设计和开发中使用的方法，因此，学生或执业工程师如何思考和可视化这些过程。 矢量测量通常不被本科HF和微波实验室所覆盖，这主要是由于成本和导师不愿远离槽线技术，因为它们的直觉视觉表示站立波。 可以在NA显示屏上模仿经典的站立图。 这需要开发新的计算机程序模块。 因此，即使在该项目提供的未来实验室环境中，也可以保留开槽线技术的直观优势。 有了新的，低成本的NA和定制的显示器，可以在工业中使用的当前测量计量学教育，而教学是基于直立浪潮的直观概念。 可以利用这种合并的NA环境来增强实验室的学习，以作为未来实验室开发的模型。 *