Introducing Computerized Data Acquisition Signal Processing and Control to an Advanced Physics Laboratory

将计算机数据采集信号处理和控制引入先进物理实验室

• 批准号: 0411367
• 负责人: Joel Fajans
• 金额: $ 2.91万
• 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: 2004
• 资助国家: 美国
• 起止时间: 2004-08-15 至 2006-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0411367&HistoricalAwards=false
• 关键词: Introducing; Computerized; Data; Acquisition; Signal

Physics (13) Computerized data acquisition, signal processing, and control is integral to the practice of modern experimental physics, yet the typical physics curriculum does not teach these modern practices. At U.C. Berkeley, all Physics and Engineering undergraduate majors take a two or three semester-long course on experimental practice. Currently, during the first two thirds of the first semester of this course, the students learn the still-necessary art of analog electronics. The final third of the first semester is devoted to the now-obsolete study of gate-level digital electronics. This project replaces the curriculum on the obsolete material with a study of computer-based experimental techniques. The required part of the new curriculum (three weeks) introduces students to programming in LabVIEW, computer-based waveform generation (including material on Nyquist's Theorem,) signal acquisition (including material on aliasing, quantization, linearity, and noise,) signal processing (including material on digital filtering, FFT and Lock-in techniques), and process control. Students do real laboratory exercises using equipment donated by National Instruments. During the final two weeks of the course, the students design and construct a final project of their choice; many of the final projects employ the student's newly learnt computer techniques. The new material is based on proven techniques from research. The curriculum is adapted from material available in several texts, papers, the web, National Instruments, and from previous Course, Curriculum and Laboratory Improvement grantees. The project will report on the new curriculum at Association of Physics Teacher meetings. Intellectual Merit: The knowledge learnt in the proposed curriculum brings students much closer to being practicing experimental scientists. Broader Impact: By improving their laboratory skills, students are better able to contribute to their chosen field after they graduate, whether it be physics, some other science, or engineering. Moreover, their new skills make it easier for them to participate in undergraduate laboratory research.

计算机化的数据采集，信号处理和控制是现代实验物理实践不可或缺的，但典型的物理课程并不教授这些现代实践。在加州大学在伯克利，所有物理和工程本科专业的学生都要参加两到三个学期的实验实践课程。目前，在本课程第一学期的前三分之二，学生们学习仍然必要的模拟电子艺术。第一学期的最后三分之一是致力于门级数字电子学的研究，现在已经过时了。该项目以计算机实验技术的研究取代关于过时材料的课程。新课程的必修部分（三周）向学生介绍LabVIEW编程，基于计算机的波形生成（包括奈奎斯特定理的材料），信号采集（包括混叠，量化，线性和噪声的材料），信号处理（包括数字滤波，FFT和锁定技术的材料）和过程控制。学生们使用国家仪器捐赠的设备进行真实的实验室练习。 在课程的最后两周，学生设计并构建他们选择的最终项目;许多最终项目采用学生新学到的计算机技术。这种新材料是基于经过研究证明的技术。该课程是从几个文本，论文，网络，国家仪器，并从以前的课程，课程和实验室改进赠款可用的材料改编。该项目将在物理教师协会会议上报告新课程。智力优势：在拟议的课程中学到的知识使学生更接近实践实验科学家。更广泛的影响：通过提高他们的实验室技能，学生毕业后能够更好地为他们选择的领域做出贡献，无论是物理学，其他科学还是工程学。此外，他们的新技能使他们更容易参与本科实验室研究。