Ms. Chengfang Duan Profile

Chengfang Duan

at National Univ of Defense Technology

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Publications (3)

Proceedings Article | 2 July 2019 Open Access

Teaching research and practice of integrated design experiment in photoelectric courses

Bing Lei, Jianhua Shi, Wei Wang, Chengfang Duan, Wenjie Jiang, Hairong Zhong

Proceedings Volume 11143, 111433N (2019) https://doi.org/10.1117/12.2523841

KEYWORDS: Integrated circuit design, Signal detection, Telecommunications, Reconnaissance systems, Light emitting diodes, LED displays, Signal processing, Data communications, Analog electronics, Modulation

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The photoelectric courses such as photoelectric technology, optical communication, optoelectronics, and photoelectric detection and signal processing, which own the properties of specialty, integrity and practicability, are usually difficult to grasp well only by classroom teaching. To help undergraduates to understand the photoelectric courses’ knowledge and improve their problem solving ability, developing the project-based integrated design experiments is an effective method to inspire the students’ interest and improve their innovative practical ability.

Firstly, the main properties of photoelectric courses’ integrated design are analyzed, and the basic principles of selecting the proper topics to design some training projects are summarized. A well designed project should be comprehensive, feasible and cost effective, and the project can be separated into several parts with gradually increasing difficulty, which is good for implementing it step by step and inspiring the students’ potentials. Secondly, some teaching research and practice of integrated design experiments are implemented based on the photoelectric technology course offered in our university, and four integrated design projects are introduced, which are measuring the rotating speed, direction and stop position of a rotating wheel, designing a laser reconnaissance warning and jamming system, making an analog and digital communication system by utilizing a white light LED and making a photoelectric detection system for blood oxygen saturation. The experimental arrangement and implementing experience are also provided and investigated. Thirdly, some crucial problems discovered in our teaching practice, such as optimizing the design contents and demands of project, helping students’ to overcome various difficulties, making teachers become experienced, and evaluating the project design results efficiently and accurately, are also analyzed and discussed to improve and perfect the quality of integrated design experiments. In conclusion, the photoelectric integrated design experiments have been introduced to help undergraduates to master the theoretical knowledge and train their problem solving ability, and our teaching practice experiences have been summarized and provided based on the photoelectric technology course, which can be spread to other photoelectric courses.

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Proceedings Article | 2 July 2019 Open Access

An innovative practical teaching model based on information technology

Jianhua Shi, Hairong Zhong, Bing Lei, Wei Liu, Chengfang Duan, Wei Wang

Proceedings Volume 11143, 1114330 (2019) https://doi.org/10.1117/12.2523269

KEYWORDS: Video, Light sources, Data modeling, Information technology, Spectroscopy, Spectrophotometry, Optoelectronics, Internet, Optical testing, Sensors

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Proceedings Article | 16 August 2017 Open Access

A whole-process progressive training mode to foster optoelectronic students' innovative practical ability

Hairong Zhong, Wei Xu, Haojun Hu, Chengfang Duan

Proceedings Volume 10452, 104520T (2017) https://doi.org/10.1117/12.2266476

KEYWORDS: Optoelectronics, Scientific research, Computing systems, Integrated optics, Mechanics, Electronics

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This article analyzes the features of fostering optoelectronic students’ innovative practical ability based on the knowledge structure of optoelectronic disciplines, which not only reveals the common law of cultivating students' innovative practical ability, but also considers the characteristics of the major: (1) The basic theory is difficult, and the close combination of science and technology is obvious; (2)With the integration of optics, mechanics, electronics and computer, the system technology is comprehensive; (3) It has both leading-edge theory and practical applications, so the benefit of cultivating optoelectronic students is high ; (4) The equipment is precise and the practice is costly. Considering the concept and structural characteristics of innovative and practical ability, and adhering to the idea of running practice through the whole process, we put forward the construction of three-dimensional innovation and practice platform which consists of “Synthetically Teaching Laboratory + Innovation Practice Base + Scientific Research Laboratory + Major Practice Base + Joint Teaching and Training Base”, and meanwhile build a whole-process progressive training mode to foster optoelectronic students’ innovative practical ability, following the process of “basic experimental skills training - professional experimental skills training - system design - innovative practice - scientific research project training - expanded training - graduation project”: (1) To create an in - class practical ability cultivation environment that has distinctive characteristics of the major, with the teaching laboratory as the basic platform; (2) To create an extra-curricular innovation practice activities cultivation environment that is closely linked to the practical application, with the innovation practice base as a platform for improvement; (3) To create an innovation practice training cultivation environment that leads the development of cutting-edge, with the scientific research laboratory as a platform to explore; (4) To create an out-campus expanded training environment of optoelectronic major practice and optoelectronic system teaching and training, with the major practice base as an expansion of the platform; (5) To break students’ “pre-job training barriers” between school and work, with graduation design as the comprehensive training and testing link.

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