气垫弹簧振子简谐振动正弦曲线合成演绘仪  

Air Cushion Spring Oscillator Simple Harmonic Vibration Sine Curve Demonstrator

作　　者：杜倩 代伟[1] 王漫 蒋金华 彭钟樊 DU Qian;DAI Wei;WANG Man;JIANG Jin-hua;PENG Zhong-fan(China West Normal University,Sichuan Nanchong 637002)

机构地区：[1]西华师范大学,四川南充637002

出　　处：《大学物理实验》2018年第1期107-109,共3页Physical Experiment of College

基　　金：四川省研究生教育改革创新项目[川学位(2013)15号]

摘　　要：针对传统简谐振动图像演示仪存在的不足,气垫弹簧振子简谐振动正弦曲线合成演绘仪利用气垫导轨,在弹簧振子上安装一强激光器,在气垫导轨的前端安放一热转印卷纸的走纸机构,当弹簧振子在气垫导轨上作简谐振动时激光器跟随振子一起运动,强激光打在匀速向上运动的卷纸上,两运动一合成得到简谐振动正弦曲线图像。仪器结构简单,操作方便,学生能很好理解简谐振动曲线的形成过程,演示效果好。Aiming at the shortcomings of the traditional harmonic vibration image demonstration instrument,air cushion spring vibration sine curve synthesizer is equipped with air cushion guide rail,being installed a strong laser on a spring oscillator,being put the paper feed agency of a thermal transfer paper in the front of the air track,being placed the paper body of a heat transfer paper at the front end of the air cushion guide.When the spring vibrates on the air cushion the laser follows the vibrator,the strong laser strikes the uniform upward movement of the paper and the two motion synthesis is obtained by the simple harmonic sine curve image.The instruments is simple and it’s easy to operate.What’s more,students can understand the forming process of the harmonic vibration curve.There is a good demonstration.

关 键 词：气垫导轨 弹簧振子 简谐振动 曲线 合成 

分 类 号：O4-33[理学—物理]