摘要
针对低年级本科生专业知识尚不完整而开设研究性实验较为困难的问题,以文氏桥振荡器实验为例,提出增加原有基础性实验内涵,设计了以实验问题与实验现象探究为核心的研究性实验。详细分析了文氏桥振荡器的工作原理、频率偏差及频率上限等问题,并给出了具体的实验设计。
It is difficult to develop research-oriented experiment because freshmen,sophomores and even juniors haven＇t got enough professional knowledge.A research-oriented experiment based on Wien-bridge oscillator is designed.The experiment is focused on exploring and researching its phenomena and problems.The theory,frequency deviation and frequency upper limit are analyzed in detail,and the experiment schemes are introduced point by point.
出处
《实验技术与管理》
CAS
北大核心
2016年第11期102-104,116,共4页
Experimental Technology and Management
基金
国家自然科学基金项目(63179100)
江苏高校大学生实践创新训练计划项目(201310290007Y)
关键词
文氏桥振荡器
研究性实验
频率偏差
频率上限
Wien-bridge oscillator
research-oriented experiment
frequency deviation
frequency upper limit
