Browse > Article
http://dx.doi.org/10.5369/JSST.2018.27.3.199

Development of the Smallest, High-accuracy NDIR Methane Sensor Module to Detect Low Concentration  

Kim, Dong-Hwan (ELT SENSOR Corp.)
Lee, Ihn (ELT SENSOR Corp.)
Bang, Il-Soon (ELT SENSOR Corp.)
Chun, Dong-Gi (ELT SENSOR Corp.)
Kim, Il-Ho (ELT SENSOR Corp.)
Publication Information
Journal of Sensor Science and Technology / v.27, no.3, 2018 , pp. 199-203 More about this Journal
Abstract
In this study, we develop a methane sensor module that can detect low concentrations below 5,000 ppm and measure up to the detection limit of 50 ppm with the NDIR method, with a long lifetime and high accuracy. Methane ($CH_4$) is one of a representative greenhouse 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 $4cm{\times}4cm{\times}2cm$ and its response time ($T_{90}$) 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 portable devices.
Keywords
Gas sensors; Methane Sensor; CH4 Sensor; NDIR; Low concentration; Smallest NDIR;
Citations & Related Records
연도 인용수 순위
  • Reference
1 H.-J. Yoon, J.-Y. Shin, and J.-W. Hong, "The CH4 and $C_4H_{10}$ Sensitivity Measurement and Voltage Variation using Catalytic combustion Type Gas Sensor", J. Korean Inst. Fire Sci. Eng., Vol. 15(3), pp. xx-xx, 2001.
2 S. H. Baek, SENSOR HANDBOOK, Sea Gyea, pp. 592-642, 1990.
3 X. Tang, Y. Liang, H. Dong, Y. Sun, and H. Luo, "Analysis of Index Gases of Coal Spontaneous Combustion Using Fourier Transform Infrared Spectrometer", J. Spectrosc., Vol. xx(issue number), pp. 414391(1)-414391(8), 2014.
4 E. Wagner, R. Dandliker, and K. Spenner, Sensors: volume 6: Optical Sensors, VCH press, Chapter 12, pp. 88-95, 1991.
5 S. Yoon, Mode-and Bond Selected Reactions of Variationally Excited Methane and Monodeuterated Methane With Chlorine Atoms, University of Wisconsin-madison, pp. 72-73, 2003.