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RISS 인기검색어
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- 저자 : 장영학(Y-H Chang) (검색결과 5 건)
- 무료
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- 유료
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이인혁(I-H Lee),송성근(S-G Song),이상훈(S-H. Lee),박성준(S-J Park),남해곤(H-G Nam),정해덕(H-D Chung),장영학(Y-H Chang) 전력전자학회 2005 전력전자학술대회 논문집 Vol.- No.-
In this paper, we proposed the electric circuit using one common arm of H-Bridge Inverters to reduce the number of switching component in multi-level PWM inverter combined with H-Bridge Inverters and Transformers. and we proposed the switching method that can be same rate of usage at each transformer. Also, we tested the proposed prototype inverter to clarify the proposed electric circuit and reasonableness of control signal.
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박종건,임영철,조경영,김이곤,장영학,Park, J.G.,Lim, Y.C.,Cho, K.Y.,Kim, Y.G,,Chang, Y.H. 한국센서학회 1992 센서학회지 Vol.29 No.3
본 연구에서는 물체의 열전도 특성을 감지하여 임의의 대기온도에서도 열전도가 다른 몇가지 물체의 재질을 식별할 수 있는 센서에 대해 연구하였다. 임의의 대기온도에서 센서의 온도 값을 계산하기 위해 3차 Spline 보간식을 적용하여 계산된 센서의 온도에 따라 재질을 식별하는데, 실측된 온도와 비교하였을 경우 매우 잘 일치하였다. 열전도 특성을 이용한 물체의 재질인식용 능동센서를 설계하였으며 C 언어를 이용한 물체의 재질 식별 프로그램을 개발하였다. 동일한 대기 온도상에서의 재질별 온도응답특성을 조사하였으며 대기온도변화에 따른 재질별 온도응답특성을 조사하였으며, 대기온도 변화에 따라 3 비교점의 온도는 거의 직선적으로 변화하고 평행상태를 유지함을 알 수 있었다. This paper describes a noble robot sensor designed to recognize an unknown material by measuring its thermal conductivity on various ambient temperature. The excellent agreement has been obtained between the measured sensor temperature and the calculated sensor temperature by cubic spline interpolation. The active sensor to measure the thermal conductivity of a gripped object was designed and the software program using C language to discriminate objects made of different materials was developed. The temperature response characteristics of different materials on the same ambient temperature was investigated. The temperatures on three comparing points varied linearly and had parallel relation with one another in accordance with various ambient temperature.
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Spline 보간식을 이용한 물체재질인식센서의 성능개선
박종건,임영철,조경영,김이곤,장영학 ( J . G . Park,Y . C. Lim,K . Y . Cho,Y . G . Kim,Y . H . Chang ) 한국센서학회 1992 센서학회지 Vol.1 No.1
This paper describes a noble robot sensor designed to recognize an unknown material by measuring its thermal conductivity on various ambient temperature. The excellent agreement has been obtained between the measured sensor temperature and the calculated sensor temperature by cubic spline interpolation. The active sensor to measure the thermal conductivity of a gripped object was designed and the software program using C language to discriminate objects made of different materials was developed. The temperature response characteristics of different materials on the same ambient temperature was investigated. The temperatures on three comparing points varied linearly and had parallel relation with one another in accordance with various ambient temperature.
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주신형,장영학 목포대학교 정보산업연구소 2000 情報産業硏究誌 Vol.8 No.-
This paper develops the position and angle control of an inverted pendulum using fuzzy sliding controller. In the fuzzy sliding controller, the fuzzy model, which represents the local dynamic behavior of the given nonlinear system, is utilized to construct the controller. The overall controller consists of the local compensators which compensate the local fuzzy model and the feed-forward controller which is designed via sliding mode control theory. Therefore, the fuzzy sliding controller shows improved performance and tracking results by taking the advantages of fuzzy model based method and sliding mode control theory. To demonstrate its performance, the proposed fuzzy sliding control method is applied to an inverted pendulum.
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박종건,임영철,조경영,장영학 경북대학교 센서기술연구소 1991 센서技術學術大會論文集 Vol.2 No.1
This paper describes a noble robot sensor designed to recognize an unknown object by measuring its thermal conductivity on various ambient temperature. The excellent agreement has been obtained the measured sensor temperature and the calculated sensor temperature by cubic spline interpolation. The active sensor to measure the thermal conductivity of a gripped object was designed and the software program using 'C LANGUAGE' to discriminate objects made of different materials was developed. The temperature response charateristics of different materials on the same ambient temperature was investigated. The temperatures on three comparing points varied linearly and had parallel relation with one another in accordance with various ambient temperature.
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