Journal of Advanced Navigation Technology (한국항행학회논문지)

The Korean Navigation Institute (한국항행학회)
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BLDC Motor Control Unit for Automation of X ray Equipment

X선 기기의 자동화를 위한 BLDC 모터 제어 장치

  • Kim, Tae-Gon (Department of Electrical and Electronic Engineering, Graduate School, Dongshin University) ;
  • Kim, Young-Pyo (Department of Electrical and Electronic Engineering, Graduate School, Dongshin University) ;
  • Cheon, Min-Woo (Department of Biomedical Engineering, Dongshin University)
  • 김태곤 (동신대학교 대학원 전기전자공학과) ;
  • 김영표 (동신대학교 대학원 전기전자공학과) ;
  • 천민우 (동신대학교 병원의료공학과)
  • Received : 2011.08.26
  • Accepted : 2011.10.30
  • Published : 2011.10.31
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Abstract

X-ray device used in the diagnosis has made possible to have more effective and accurate diagnosis, powered by the development of various devices. Based on this, X-ray device has become the most basic and essential diagnostic equipment in clinical medicine. At present, in the image acquisition field using X-ray, the use of Digital radiography which is useful in the acquisition time reduction and transfer of images and is possible to have the dose reduction has expanded. With the structure using one detector, this DR device has disadvantages in that it needs structural changes unlike existing X-ray and the detector should be moved to the desired position depending on the shooting location. Therefore, in this study, using BLDC(Brushless direct current) motor and PID(Proportional integral differential) control method, the automatic control system of 3-axis which is upward and downward, left and right and rotation of detector where having the most movement in DR was designed and produced and its performance was evaluated.

진단용 X선 기기는 다양한 장치의 개발에 힘입어 보다 효과적이고 정밀한 진단이 가능하게 되었다. 정밀 진단이 가능하게 되면서 X선 기기는 임상의학에 있어 가장 기본적이고 핵심적인 진단 장치로 자리 잡고 있다. X선을 이용한 영상획득 분야에서는 영상의 획득 시간 단축과 전송이 용이하고, 조사선량의 감소가 가능한 DR(Digital Radiography)의 사용이 확대되고 있다. 하지만 DR은 1개의 디텍터를 이용하는 구조로 되어있어 기존의 X선 장치와는 달리 구조적인 변경이 필요하며 촬영위치에 따라 디텍터를 원하는 위치까지 움직여야하는 단점을 가진다. 따라서 본 연구에서는 BLDC 모터와 PID 제어방식을 사용해 DR에서 가장 움직임이 많은 디텍터의 상하, 좌우, 회전의 3축 위치자동 제어 시스템을 설계 제작하고 그 성능을 평가 하였다.

Keywords

References

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