Journal of Biomedical Engineering Research (대한의용생체공학회:의공학회지)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
권호 표지

Design and Evaluation of Blood flow Measurement Using Self-mixing type Semiconductor Laser

자기혼합형 반도체 레이저를 이용한 혈류측정 시스템 설계 및 평가

  • 김덕영 (서울시립대학교 전자공학과) ;
  • 이진 (서울시립대학교 전자공학과) ;
  • 김세동 (서울시립대학교 전자공학과) ;
  • 고한우 (서울시립대학교 전자공학과) ;
  • 김성환 (서울시립대학교 전자공학과)
  • Published : 1996.12.01
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Abstract

Blood flow velocimeter is an essential device to measure the blood flow in skin tissue. In this study, we developed a high-speed LDV(laser Doppler Velocimeter) that has real time processing capability using a DSP(digital signal processing) chip and is able to continuously measure information about blood-flow based on a noninvasive method using self-mixing type laser diode. This LDV system has a simpler structure than any other typical blood flow velocimeter and is composed of new self-mixing probe, stabilizer circuits DSP board, and interf'ace boule We measured velocity of speaker-unit by operational frequencies to identify Doppler effect of this system, performed clinical experiment on bare finger tip and compared it with a commercial euipment BPM403A(USA).

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References

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