Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Development of Linux based Real-Time Spectrum Analyzer for Puretone Audiometer

순음청력검사기를 위한 리눅스 기반 실시간 스펙트럼 분석기 개발

  • Kang, Deok-Hun (Department of Biomedical Engineering, College of Natural Resource and Life Science, Pusan National University) ;
  • Shin, Bum-Joo (Department of Biomedical Engineering, College of Natural Resource and Life Science, Pusan National University) ;
  • Jeon, Gye-Rok (Department of Biomedical Engineering, School of Medicine, Pusan National University) ;
  • Wang, Soo-Geun (Department of Otolaryngology, School of Medicine, Pusan National University)
  • 강덕훈 (부산대학교 생명자원과학대학 바이오메디컬공학과) ;
  • 신범주 (부산대학교 생명자원과학대학 바이오메디컬공학과) ;
  • 전계록 (부산대학교 의학전문대학교 의공학교실) ;
  • 왕수건 (부산대학교 의학전문대학원 이비인후과학교실)
  • Received : 2011.04.29
  • Accepted : 2011.06.09
  • Published : 2011.06.30
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Abstract

Because the puretone audiometer is an important medical instrument used to diagnose hearing loss, the IEC and ANSI has been published a specification with which audiometer should comply. This paper describes development of Linux based real-time spectrum analyzer which is dedicated to puretone audiometer. It can measure not only hearing level but also compliance of IEC standard for puretone audiometer such as frequency accuracy, harmonic distortion, pulsed tone, narrow band noise and linearity. We have verified our real-time spectrum analyzer through comparing to commercial product.

순음청력검사기는 청력의 손실 여부를 측정하기 위해 사용되는 중요한 의료기기이기 때문에 IEC와 ANSI에서는 순음청력검사기와 관련된 표준을 제시하고 있다. 본 논문은 순음청력검사기가 표준을 준수하는지 검사하기 위해 개발한 리눅스 기반 실시간 스펙트럼 분석기에 대해 기술한다. 본 논문의 실시간 스펙트럼 분석기는 청력 레벨 측정뿐 아니라 IEC에서 규정하고 있는 주파수 정확도, 청력 레벨 선형성, 고조파 왜곡, 단속음, 협대역 잡음에 대한 규정 준수 여부를 판단할 수 있는 기능을 제공한다. 개발한 실시간 스펙트럼 분석기를 상용 보정 시스템과 비교하여 검증한다.

Keywords

References

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