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이찬원,양기섭,박종식,이재윤,김재철,권우현 경북대학교 센서기술연구소 1995 센서技術學術大會論文集 Vol.6 No.1
A prototype for measuring the amount of colon bacilli in water has been constructed using pressure sensor. The amount of total coliforms is determined by measuring the pressure increase rate with time. Experimental results show that the latency time for measuring the amount of coil is about 4-6 hours compared with 24-72 hours with the previous measurement methods.
김영복(Y. B,Kim) 한국동력기계공학회 2009 한국동력기계공학회 학술대회 논문집 Vol.2009 No.11
An environmental monitoring system has been developed as a commercially available standard using the technique of hetero-core spliced fiber optic sensor, for the purposes of monitoring large scaled structures and preserving natural environments. The developed system in this work conveniently provides us with various options of sensor modules intended to measure such physical quantities as displacement, distortion, pressure, binary states and liquid adhesion. In this paper, the experiment study has been performed to clarify temperature influences to the system in terms of the coupling of optical connectors and the OTDR stability. From the experiment, it has been verified that the sensing system is robust to the temperature change ranging from the general condition to the hard condition. The specification and performances of various option modules including the pressure sensor have been demonstrated to show the capability of inspecting various physical quantities.
김영복(Y. B. Kim) 유공압건설기계학회 2010 드라이브·컨트롤 Vol.7 No.2
A new type fiber optic sensing system has been developed as a commercially available standard using the technique of hetero-core spliced fiber optic sensor, for the purposes of monitoring large scaled structures, preserving natural environments and measuring physical phenomenons. The sensing system has been tested and evaluated in a possible outdoor condition in view of the full scaled operation at actual sites to be monitored. Additionally, the developed system in this work conveniently provides us with various options of sensor modules intended to measure such physical quantities as displacement, distortion, pressure, binary states and liquid adhesion. The experiment study has been performed to examine the performance to a pseudo-cracking experiment in the outdoor situation, and to clarify temperature influences to the system in terms of the coupling of optical connectors and the OTDR stability. It has been verified that the sensing system is robust to the temperature change ranging from the general condition to the hard condition. Especially, in this study, the specification and performances of the pressure sensor have been demonstrated to show the capability of inspecting various physical quantities.
김남임,박진아 한국의류학회 2022 한국의류학회지 Vol.46 No.5
This study aimed to develop an Arduino-based garment pressure device (APD) on the basis of using SingleTact sensor by suggesting the reliable clothing pressure range and coefficient of selected sensors through the APD calibration process. Once the APD was validated, the pressure of the experimental men's lower body compression wears was measured using the APD and was compared to the pressure measured using the existing air-pack type pressure meter. The subjects were one mannequin and eight men in their 20's, and the trial compression wears were calf sleeves and pants. Clothing pressures were measured in hip, mid-thigh, calf, and ankle. In terms of the 99% confidence level, the experimental clothing pressure measured at the designated measuring points using the APD was considered identical to the one measured using an existing clothing pressure meter. Therefore, on the basis of the experiment results, this study demonstrated that the APD is as reliable as the existing clothing pressure meter within the pressure ranges of 0.54-16.79 kPa and 0.18-25.47 kPa as provided by the SingleTact sensor supplier's data on the basis of using an external ADC (Analog to Digital Converter) module.