A Mothod for Detection of Vibrationi by the Ultrasonic

초음파를 이용한 진동의 검출방법

  • 이백영 (룻데파이오니어 개발과장) ;
  • 서호선 (연세대 공과대학 전자공학과) ;
  • 차일환 (연세대 공과대학 전자공학과)
  • Published : 1982.01.01

Abstract

It is studied on the apparatus for detecting the amplitude and the frequency of the vidrating object by utilizing the Ultrasonic Doppler Effect, without having any effect on the vibratioinal cases. The output detected varing the distance between the transducers and the vibrating object, when the angles of the incidence and the reflection wave are equalized. AM demodulatioin is adapted for the detection of vibration, and the output errors are theoretically consideed. The accurate detection of vibration can be obtained, when the distance between them is 5cm to 20cm, the magnitude of amplitude is 1mm to 5mm, and the vibrational frequency range is 20Hz to 1KHz.

Keywords