저 농도 감지를 위한 NDIR 방식의 초소형 고정도 메탄센서 모듈 (Development of the Smallest, High-accuracy NDIR Methane Sensor Module to Detect Low Concentration)

서지정보

· 발행기관 : 한국센서학회
· 수록지 정보 : 센서학회지 / 27권 / 3호 / 199 ~ 203페이지
· 저자명 : 김동환, 김일호, 이인, 방일순, 천동기

초록

In this study, we develop a methane sensor module that can detect low concentrations below 5,000 ppm and measure up to the detec- tion limit of 50 ppm with the NDIR method, with a long lifetime and high accuracy. Methane (CH4) is one of a representative green- house gas, which is very explosive. Thus, it is important to quickly and accurately measure methane concentration in the air. To adjust the methane sensor for industrial field applications, a NDIR-based small sensor was implemented and characterized, where its volume was 4 cm × 4 cm × 2 cm and its response time (T90) was less than 30 sec. These results demonstrate that the proposed sensor is commercially available for low-concentration measurement, low volume, and fast response application, such as IoT sensor nodes and por- table devices.

영어초록

In this study, we develop a methane sensor module that can detect low concentrations below 5,000 ppm and measure up to the detec- tion limit of 50 ppm with the NDIR method, with a long lifetime and high accuracy. Methane (CH4) is one of a representative green- house gas, which is very explosive. Thus, it is important to quickly and accurately measure methane concentration in the air. To adjust the methane sensor for industrial field applications, a NDIR-based small sensor was implemented and characterized, where its volume was 4 cm × 4 cm × 2 cm and its response time (T90) was less than 30 sec. These results demonstrate that the proposed sensor is commercially available for low-concentration measurement, low volume, and fast response application, such as IoT sensor nodes and por- table devices.

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