摘要
探索研究了一种将连续核磁共振和脉冲核磁共振有机融合的实验教学方法.在实验中,利用多媒体课件展示核磁共振的物理原理,学生分别采用连续和脉冲核磁共振方法测量同样浓度的CuSiO4水溶液的表观弛豫时间和横向弛豫时间,了解样品浓度、磁场非均匀度等因素对横向弛豫时间测量的影响.
An exploration of the teaching method of nuclear magnetic resonance （NMR） experiment is reported, in which continuous wave and pulse mode NMR are well combined. A multimedia courseware is developed to display the principle of NMR. Students can use the continuous wave and pulse mode NMR to measure the apparent and the transverse relaxation time of CuSiO4 solution. This can help students to deeply understand the influence of concentration and the nonuniformity of the magnetic field on the measurement of transverse relaxation time.
出处
《物理实验》
北大核心
2010年第7期40-43,共4页
Physics Experimentation
基金
教育部及北京市特色专业建设项目(No.TS2072)
北京师范大学教学改革项目
关键词
核磁共振
横向弛豫时间
表观弛豫时间
核磁共振演示课件
nuclear magnetic resonance
transverse relaxation time
apparent relaxation time
NMR courseware
