大学物理 ›› 2011, Vol. 30 ›› Issue (5): 43-43.

• 著者文摘 • 上一篇    下一篇

基于电力线载波与TCP/IP协议的刚体转动惯量实验系统的设计

王学水 马贺凯 王岩庆   

  1. 山东科技大学理学院,山东青岛266510
  • 出版日期:2011-05-25 发布日期:2011-05-20

Design of experimental system of the moment of inertia based on PLT communication and TCP/IP protocol

  • Online:2011-05-25 Published:2011-05-20

摘要: 介绍了一种新的测量刚体转动惯量的实验方法与实验装置.在实验中,通过增加标准刚体试件,把细线拉力对转轴摩擦力矩的影响考虑进去,大幅度地提高了实验测试精度.另外,利用电力线载波通讯网络,将转动惯量测量仪采集的时间数据传输到PC机中,再经过PC机端数据处理软件,快速准确地将待测刚体的转动惯量以及其它与刚体有关的物理量计算、显示出来,杜绝了学生抄袭实验数据的不良现象,便于实验老师与学生的互动.

关键词: 刚体转动惯量测量, 转轴摩擦力矩, 电力线载波, TCP/IP协议

Abstract: A new experimental method and system is used to measure the moment of inertia.The effect of string pull impacting on the friction torque of spindle is considered by adding a standard rigid body test piece in the physical experiment measuring the moment of inertia of a rigid body,which has improved the accuracy of this experiment greatly.In addition,the time data being measured by single MCU are transported to a personal computer by means of the communication network,which is according to PLT communication and TCP/IP protocol.Then the moment of inertia of the rigid body and other physical quantities are calculated by the data process software.Thisnew experiment method and system improves greatly the accuracy of the experiment and propitious to the communication between teacher and students and prevents students from plagiarizing each other.

Key words: measurement of moment of inertia, friction torque of spindle, standard rigid body test piece, PLT communication, TCP/IP protocol

中图分类号: 

  • O4-33