Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Basic Study of the Improvement of PSD Output by Inclined Light Input

PSD의 출력특성향상을 위한 경사 입력광의 특성해석에 대한 기본연구

  • 권현규 (금오공과대학교 기계공학부) ;
  • 박창용 (금오공과대학교 기계공학부)
  • Received : 2010.07.19
  • Accepted : 2010.08.26
  • Published : 2010.08.30
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Abstract

In this paper, the output characteristics of PSD(Position Sensetive Detector) used in measurement system are described. Most of the precision measurment systems are accomplished by a laser diode(LD), a photo diode(PD) and PSD(Position Sensetive Detector), which are used in reflection of mirror or projection of infrared spectrometer. But it is especially restricted by resolution of PD and PSD in nano-measurement. A new inclined light methods into the PSD are employed in the surface measurement system for increasing the resolution. As the results, we can know that the output characteristics of detective senser (PSD) become more than 2 or 3 times by changing inclined angle(range: 5 degree) compared with common angle. In addition, the experiment results are confirmed that the change of inclined angle is not affecting to the linearity and repeating.

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References

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