大学物理 ›› 2012, Vol. 31 ›› Issue (8): 49-49.

• 著者文摘 • 上一篇    下一篇

基于PASCO数据采集装置的激光测速实验探究

孙双鹏 吴万 王福娟 蔡志岗   

  1. 中山大学物理科学与工程技术学院,广东广州510275
  • 出版日期:2012-08-25 发布日期:2012-08-20

Study on measuring system of velocity based on PASCO device

  • Online:2012-08-25 Published:2012-08-20

摘要: 探究了基于光多普勒效应和PASCO数据采集装置的激光测速实验,分别获取了液体流速和固体(光纤探针)运动速度的多普勒信号,利用多普勒信号可以测定它们的速度,并用“双光纤测速法”对比说明了测固体运动速度的精度.

关键词: 多普勒效应, 激光流速仪, 探针, PASCO

Abstract: An instrument for measuring velocity of system based on the Doppler effect of light using PASCO system to acquire signal are made. We have succeeded in measuring the velocity of liquid and solid (fiber) and an- alyzed the data and signal spectrum acquired.

Key words: Doppler effect, laser Doppler velocity instrument, probe, PASCO

中图分类号: 

  • O439