http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
다채널 LAPS용 pH 변화량 검출을 위한 적분 방식의 알고리듬 제안
배상곤,이승하,강신원,조진호,Bae, Sang-Kon,Lee, Sung-Ha,Kang, Shin-Won,Cho, Jin-Ho 대한전자공학회 2001 電子工學會論文誌-SC (System and control) Vol.38 No.6
We proposed the detection method of pH variations by integrating a photocurrent characteristic curve, instead of finding an inflection point by differentiating it in LAPS system. By a simulation of the performance of the proposed method, we verified that it had 80 and 1000 times higher sensitivity and resolution than a conventional method. Then, with the implemented system based on the simulation results, we measured a pH variation which was given rise to a potential change on the LAPS surface exposed to 2-0.03125[mg/ml] enzyme solutions. As results, we observed that the proposed method has a higher sensitivity and resolution of 3.76-0.08[pH/min] pH variations than 3.79-0.27[pH/min] for conventional method with same samples. 본 논문에서는 시간-농도 분해능을 필요로 하는 LAPS장치에 있어서, 광전류 특성 곡선의 변곡점을 찾아 이동량을 측정하는 대신에 특성 곡선의 적분값 변화를 이용하여 pH변화를 검출하는 방식을 제안하였다. 제안된 방식의 성능 확인을 위하여 시뮬레이션을 수행하였으며, 이로부터 약 80배의 감도 및 1000배의 분해능 증가를 확인하였다. 수행된 결과를 바탕으로 측정 시스템 및 2-0.03125 [mg/ml]농도의 효소가 묻은 스트립을 제작하여 측정한 결과, 동일한 샘플수에 대해 기존의 3.79-0.27[pH/min]보다 더 높은 3.76-0.08 [pH/min]의 pH변화감도를 측정할 수 있었다.
ISEFT 마이크로센서용 샘플챔버 설계 및 4채널 전해질 분석기의 구현
배상곤,이호신,원철호,채승표,김창수,조병욱,손병기,김명남,조진호 ( Sang Kon Bae,Ho Shin Lee,Chul Ho Won,Seung Pyo Chae,Chang Soo Kim,Byung Wook Cho,Byung Ki Sohn,Myoung Nam Kim,Jin Ho Cho ) 한국센서학회 1997 센서학회지 Vol.6 No.4
In this paper, a sample chamber which provide easy replacement of ISFET sensor and consume only small sample volume for electrolyte analysis is designed and a 4-channel electrolyte analyzer employing 2-point calibration method is implemented. In addition, we proposed sample loading detection circuit for minimizing sample and calibration solutions and implemented it. Developed electrolyte analyzer consists of control system part and flow system part. For the effective control of the developed hardware, system software is developed as three individual routines ; measuring routine, calibration routine and washing routine.
다채널 LAPS 제적 및 이를 이용한 pH 변화량 검출 시스템 구현
박일용,조진호,박영식,강신원,배상곤,장수원,이승하 한국센서학회 2001 센서학회지 Vol.10 No.4
LAPS is a device which is dependent on the bias potential between a pH sensitivity and alternating photocurrent. We implemented the multichannel LAPS device and the detection system which was able to effectively measure the sensor's output by a synchronized detection circuit and multiple methods. The implemented LAPS was structured the multiple sensing sites for analyzing a various components simultaneously. And the system included a time-division method using one pre-amplifier being able to detect the multichannel pH concentration preserving a high S/N ratio and a control part. System hardware consists of a pre-amplifier, digital unit and sensor unit, and software consists of a system program and PC program. As results, we verified the successful operations of system including an implemented pre-amplifier and signal processing units.