便携式纵驻波演示仪的制作  

MANUFACTURE OF PORTABLE EXPERIMENT DEMONSTRATOR OF THE LONGITUDINAL STANDING WAVE

作　　者：梁法库[1] 路峻岭[2] 耿志[1] 陈丽娜[1] 迟卓君[1] 

机构地区：[1]齐齐哈尔大学理学院,黑龙江齐齐哈尔161006 [2]清华大学物理系,北京100084

出　　处：《物理与工程》2010年第5期24-25,51,共3页Physics and Engineering

基　　金：黑龙江省教育厅2007年科学技术研究面上项目(11521309)

摘　　要：介绍一种利用电磁感应原理得到可调的谐振信号,驱动扬声器产生稳定的谐振动,使振动在特制的弹簧中形成驻波,研制出了便于教师携带的、适合学生们自制、可在普通课堂上演示的纵驻波实验仪器.This paper introduced a kind of experiment demonstrator,by which an adjustable harmonic signal can be obtained by electromagnetic induction principle.The stable harmonic resonance can be produced by a driving loudspeaker and form standing wave in the tailor-made spring.This apparatus can demonstrate the experiment of longitudinal standing wave in ordinary class,which is portable for teachers and suitable for students to make by themselves.

关 键 词：实验仪器 纵驻波 便携式 弹簧 

分 类 号：O4-4[理学—物理]