레이져를 이용한 진동측정장치

The Measurement Systme of Vibration using Laser

  • 진동희 (인하대학교 대학원 기계공학과) ;
  • 전병철 (인하대학교 대학원 기계공학과) ;
  • 조종두 (인하대학교 기계공학과) ;
  • 김재도 (인하대학교 기계공학과)
  • 발행 : 1993.10.01

초록

In this study low priced laser measurement system was made, so its reliability was investigated Intensity distribution of laser beam measured by devised system and FFT analyzer and their results were examined for proving reliability of devised system. Transmitted laser beam intensity on photodiode changed by eccentrically rotating of disk cam and motor speed. To get results, photodiode and devised amplifier were used for changing voltage. After that, response signal was calculated by signal analysis program. It was found that the vibration of disk cam could be measured by the intensity distribution of laser beam and the same tendency was obtained by FFT. Change of motor speed effected the distribution of laser beam,which was obtained by devised system. Also linear distribution was got by sensitive balancing switch on amplifier according to the transmission of laser beam on photodide.

키워드