센서학회지 (Journal of Sensor Science and Technology)

  • 제32권2호
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  • Pages.105-109
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  • 2023
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  • 1225-5475(pISSN)
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  • 2093-7563(eISSN)
한국센서학회 (The Korean Sensors Society)
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저전력 신호 추출 기법이 내장된 가스 센서 시스템 개발

Development of a Gas Sensor System with Built-in Low-power Signal Extraction Technique

  • 현장수 (서울과학기술대학교 지능형반도체공학과) ;
  • 김현준 (서울과학기술대학교 지능형반도체공학과)
  • Jang-Su Hyeon (Department of Semiconductor Engineering, Seoul National Unversity of Science and Technology) ;
  • Hyeon-June Kim (Department of Semiconductor Engineering, Seoul National Unversity of Science and Technology)
  • 투고 : 2023.03.10
  • 심사 : 2023.03.28
  • 발행 : 2023.03.31
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초록

In this study, we present a power-efficient driving method for gas sensor systems based on the analysis of input signal characteristics. The analysis of the gas sensor output signal characteristics in the frequency domain shows that most of the signal portions are distributed in a relatively low frequency region when extracting the gas sensor signal, which can lead to further performance improvement of the gas sensor system. Therefore, the proposed gas signal extracting technique changes the operating frequency of the read-out circuit based on the frequency characteristics of the output signal of the gas sensor, resulting in a reduction of power consumption at the whole system level. The proposed sensing technique, which can be applied to a general-purpose commercial gas sensor system, was implemented in a printed circuit board (PCB) to verify its effectiveness at the commercial level.

키워드

과제정보

본 연구 과제(결과물)는 2022년도 교육부의 재원으로 한국연구재단의 지원을 받아 수행된 지자체-대학 협력기반 지역혁신사업(2022RIS-005)의 지원에 의해 연구되었고, 정부(과학기술정보통신부)의 재원으로 한국연구재단-차세대화합물반도체핵심기술개발사업의 지원을 받아 수행된 연구 임(2022M3I8A2079227).

참고문헌

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