Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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A Long Range Accurate Ultrasonic Distance Measurement System by Using Period Detecting Method

주기인식 검출방식을 이용한 장거리 정밀 초음파 거리측정 시스템 개발

  • 이동활 (부산대학교 지능기계공학과, 한국 LPS) ;
  • 김수용 (부산대학교 지능기계공학과, 한국 LPS) ;
  • 윤강섭 (대구대학교 자동차산업기계공학부) ;
  • 이만형 (부산대학교 기계공학부)
  • Published : 2007.08.01
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Abstract

In this paper, we proposed a new ultrasonic distance measurement system with high accuracy and long range. To improve accuracy and enlarge range, the time of flight of ultrasonic is calculated by the period detecting method. In the proposed ultrasonic distance measurement system, the ultrasonic transmitter and receiver are separated but synchronized by RF(Radio frequency) module. The experiment has been implemented from short distance 1m to maximum available distance 30m. And the period detecting method is compared with the conventional threshold level method. Experimental results show the accuracy and range of the distance measurement are improved by this period detecting method.

Keywords

References

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