An Aalternating Motion Measurement Technique Using Linear Variables Differential Transformers

선형변이 차동변압기를 이용한 왕복운동 계측기법

  • Choi, Ju-Ho (Dept. of Electronic Engineering, Chungnam National University) ;
  • Lyou, Joon (Dept. of Electronic Engineering, Chungnam National University)
  • 최주호 (충남대학교 전자공학과) ;
  • 유준 (충남대학교 전자공학과)
  • Published : 1997.10.01


This paper presents a recoil and counter recoil motion measurement method using linear variable differential transformers(LVDT). The output of a LVDT is obtained from the differential voltage of the 2nd transformers. As the sensor core is attached to the motion body, the output is directly proportional to the core motion. Displacement, velocity and acceleration are measured from the core length. A comparison between the measurement result and the known value, which is obtained by the precision steel tape, shows that the accuracy and the usefulness of the proposed scheme is validated.


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