Journal of Industrial Technology (산업기술연구)

Kangwon National University, Institute of Industrial Technology (강원대학교 산업기술연구소)
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Distance Measurement Using Infrared Sensor On Curved Surface

적외선 센서를 이용한 곡면에서의 거리 측정

  • Min, Deok Ho (C&VTech Inc.) ;
  • Jeong, Min-Jae (Department of Advanced Mechanical Engineering, Kangwon National University) ;
  • Kim, Hyung Jin (Department of Advanced Mechanical Engineering, Kangwon National University) ;
  • Seo, Young Ho (Department of Advanced Mechanical Engineering, Kangwon National University) ;
  • Kim, Byeong Hee (Department of Advanced Mechanical Engineering, Kangwon National University)
  • Received : 2017.05.24
  • Accepted : 2017.08.24
  • Published : 2017.08.31
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Abstract

In this paper, we have extended the research on the infrared sensor which has been limited to the plane. The reflection mechanism of the light on the curved surface is analyzed according to the curvature change and the emitted angle of photodiode and verified through experiments. The difference in the curvature causes a difference in the measurement distance, and also changes the intensity of the light coming into the phototransistor, thereby causing a difference in the output voltage. However, the difference in the output voltage due to the curvature change can be solved by adjusting the emitted angle of the photodiode to minimize the spot area formed on the curved surface regardless of the curvature. Therefore, it is possible to measure the distance by using the infrared sensor regardless of the curvature by aligning the photodiode to the center of the curved surface and adjusting the angle of the photodiode.

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References

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