Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Development of Displacement Measurement System using Ultrasonic Sensor

초음파 센서를 이용한 변위 측정 시스템 개발

  • Kim, Jung-Sup (Dept. of Electronic Engineering, Kumoh National University of Technology) ;
  • Kim, Sang-Hee (Kumoh National University of Technology)
  • 김정섭 (금오공과대학교 전자공학과 대학원) ;
  • 김상희 (금오공과대학교)
  • Published : 1995.11.18
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Abstract

This paper is to develop a measurement system of the displacement distance using ultrasonic sensors. Two 400KHz ultrasonic sensors are used for realizing the measurement system, such as one sensor transmits the sine wave and the other sensor receives this wave. The displacement is measured by the phase difference between transmitting and receiving signals. A phase defecter transforms phase difference to voltage. Because the output voltage pattern has nonlinear characteristics, the relations of the voltage and the distance are learned by a neural network. As the results of teaming, the efficiency of measurement system is improved. This system can measure the displacement distance at the accuracy of 1 micrometer level.

Keywords