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박효덕,이재석,김건년,박종완,신상모 ( HyoDerk Park,jae Suk lee,Kun Nyun Kim,Jong Wan Park,Sang Mo Shin ) 한국센서학회 1994 센서학회지 Vol.3 No.3
Catalytic combustible gas sensors were fabricated by using γ-Al₂O₃ with large surface area and noble metal catalysts. The optimum conditions for γ-Al₂O₃ fabrication were investigated by DT/TGA and XRD analyses and it was found that fabricated γ-Al₂O₃ had superior value as surface area of 215.5㎡/g. Gas sensors were manufactured and tested to inflammable gases by using Pt coil as a heater and temperature sensing part, fine γ-Al₂O₃ powder as a bead material and Pt, Pd noble metal powder as a catalyst. From the results, fabricated sensor showed good sensitivity to LPG and LNG of 20mV/1000ppm, 6.5mV/1000ppm