http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이덕동,박길흠,최두현,한대현,백운이,임정옥,황태진 ( Duk Dong Lee,Kil Heum Park,Doo Hyun Choi,Dae Hyun Han,Woon Yi Baek,Jeong Ok Lim,Tae Jin Hwang ) 한국센서학회 1998 센서학회지 Vol.7 No.5
A new human sensibility (kansei) meter that can measure human sensibility at the indoor environment is developed in this paper. Four sensors that can measure temperature, humidity, CO₂ and C₄H_(10) concentrations are used. Among these sensors, the first three are used to determine the human sensibility, And the last to protect human from the harmful gas. First of all, human sensibilities are defined for each sensor datum, and then those are linearly combined to make a final human sensibility (kansei). The efficiency and usefulness of the meter are verified using a simulator on Windows 95 and a stand-alone system constructed using a microprocessor.
γ-Fe2O3 후막형 (厚膜形) 가스센서의 가스 감지특성에 (感知特性) 미치는 첨가물의 (添加物) 효과 (效果)
최동한,이덕동 ( Dong Han Choi,Duk Dong Lee ) 한국센서학회 1993 센서학회지 Vol.2 No.2
The effects of additives on the sensitivity of γ-Fe₂O₃ based hydrocarbon gas sensors have been studied. The 5wt% ZrO₂-doped γ-Fe₂O₃ thick film heat treated at 400 ℃ for 2 hours in air showed the highest sensitivity and selectivity for butane. The response time and recorvery time of the film for 1000 ppm butane in air were 20 sec. and 3 min., respectively, at an operating temperature of 350 ℃.
이덕동,최동한 경북대학교 전자기술연구소 1987 電子技術硏究誌 Vol.8 No.1
Thick film butane gas sensors were prepared by firing the screen printed mature of SnO₂, PdCl₂, and Sb₂O₃, and their properties were investigated. SnO₂ thick film with 1wt% PdCl₂ which was fired at 600℃ for 3 hours showed high sensitivity and selectivity to butane (C₄H_(10))gas. The response time to butane gas was about one second in the 2000ppm butane gas ambient. The optimum device operating temperature was about 300℃.
이덕동,김재창,최동한,정석봉,전희권,지종기 한국화학공학회 1999 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.37 No.5
여러 금속 프탈로시아닌을 이용한 NO₂가스 센서가 진공도 2×10^5torr, 증착 온도 390℃에서 진공 증착법에 의해서 제조되었다. 여러 금속 프탈로시아닌 중에서 PbPc 박막이 5 ppm NO₂농도에서 80% 이상의 가장 좋은 감도를 나타냈으며, PbPc 박막 구조는 tri, mono-clinic이 혼합되어 있는 것으로 나타났다. 응답 및 회복 시간을 포함한 최적의 동작 조건과 NO₂가스의 연속적인 흡, 탈착 특성이 파악되었고, 수분을 포함한 여러 가지 산화, 환원성 가스에 대한 선택성을 비교 검토하였다. NO₂gas sensors using various metal phthalocyanines were prepared by vacuum sublimation method at 390℃ to test the electrical properties of the sensors in the presence of NO₂gas. Among the sensors prepared in the present study, a lead phthalocyanine(PbPc) thin film showed the best performance and its sensitivity was over 80% at 5 ppm of NO₂gas. The structure of PbPc thin film was a mixture of tri and mono-clinic crystal phases. Optimal operating conditions including response time, cyclic treatment of NO₂gas, and selectivity of various reduction and oxidation gases were developed and examined.