http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
초음파 모터의 위상차 제어를 이용한 3자유도 힘반영 촉각장치 설계
오금곤(Geum-Kon Oh),조진섭(Jin-Sub Cho),김동욱(Dong-Ok Kim),김영동(Young-Dong Kim),김재민(Jae-Min Kim) 전력전자학회 1999 전력전자학술대회 논문집 Vol.1999 No.7
This paper proposes an interfaces contro1 system to drive a ultrasomc motors(USMs). To touch surfaces and objects created within a virtua environment, the 3 DOF force-reflecting interfaces provides force feedback to users, so to feel touching real things. To effectively display the mechanical impedance of the human hand we need a device with specific characteristics, such as low inertia almost zero friction and very high stiffness. As an actuator for direct drive method, the USMs have many good advantages satisfied these conditions over conventional servo motors. To estimate capability of this interface, we did an experiment. The device works very well, as user are able to detect the edge of the wall and the stiffness of the button
신덕,오금곤,김영동,Shin, Duk,Oh, Geum-Kon,Kim, Young-Dong 한국조명전기설비학회 1999 조명·전기설비학회논문지 Vol.13 No.1
함반영 촉각장치(Force-Reflecting haptic Interface)는 인간이 컴퓨터에 의해 생성한 가상의 세계에 손의 위치 정보를 제공하고 가상의 손이 가상 환경에 접촉했을 때 인간에게 촉각을 전달하는 장치이다. 본 논문에서는 컴플라이언스 제어가 비교적 용이한 초음파 모터 액츄에이터를 사용하여 직접구동 방식으로 촉각장치를 설계하였다. 렌더링 알고리즘을 이용하여 가상의 벽, 가상 버튼, 가상 구멍 등의 기본적인 역감실험을 한 결과 힘 반영에 의한 역감을 제시받을 수 있었다. Throughout this thesis, I describe the design, fabrication, and evaluation of the 3 DOF farce-reflecting haptic interface using USMs(ultrasonic motors). This haptic interface allows a htmlaIl "observer" to explore and interact with a virtual environrrent for the sense of touch. To effectively display the mechanical impedance of the htmlaIl hand we need a haptic device with specific characteristics, such as low inertia, alrmst zero friction and very high stiffness. USMs have attracted considerable attention as the actuator satisfied these conditions. An observer may grasp the end effector of revice and interact with surfaces and objects created within a virtual environment The revice provires force feedback, allowing users to "feel" objects within the environment. The device works very well, as users are able to detect the edge of the wall, the stiffness of the button and the puncture. TIle force-reflecting haptic interface could be suitable as a master for micro-surgery or as an interface to virtual reality training systems.
박진석(JIn-Suk Park),김대현(Dae-Hyun Kim),오금곤(Geum-Kon Oh),김영동(Young-Dong Kim) 전력전자학회 1999 전력전자학술대회 논문집 Vol.- No.-
In Teleoperation system, the force information is important in dealing with fragile or explosive object. But appropriate size or precision of force sensors are always unavailable in some applications Futhermore, the system becomes unstable due to the time delay in transferring<br/> the force information This paper presents a framework of the teleoperation system based on virtual environments This system consists of three process; the graphic simulation, slave arem control, and haptic process. In this approach, the problems caused by the force sensor and the instability in the presence of time delay can be overcome becuase the reaction force calculated from the virtual internal models when the slave arm is in contact with an object. With this system, a stable contact task was accomplished with the reaction force information. The experimental results to verified the effectiveness are described in this paper
초음파 모터 구동 역감 장치에 부탁한 전기자극 촉감 장치의 설계
김동옥(Dong-Ok Kim),강원찬(Won-Chan Kang),김성철(Sung-Cheol Kim),오금곤(Geum-Kon Oh),김영동(Young-Dong Kim) 전력전자학회 2001 전력전자학술대회 논문집 Vol.2001 No.7
This paper proposes the electric stimulus tactile apparatus system (TESTAS) loaded on the haptic interface using ultrasonic motors(USMs).<br/> To touch the virtual object like wall in graphic, the 6 DOF haptic interface provides force feedback to users as if it is real. But the case of sharp virtual object like a puncture, it could not provided the sense of pain, but only the reaction-force. After the TESTAS had been loaded on this haptic interface, it could provide not only the force but also the pain to users.<br/> To estimate the capability of TESTAS, we did experiments of three cases, one was very sharp, another was dull, the other is contmuative.
2차 권선을 직?병렬연결한 자속구속형 전류제한기의 퀜치특성
박형민(Hyoung-Min Park),조용선(Yong-Sun Cho),최효상(Hyo-Sang Choi),오금곤(Geum-Kon Oh),한태희(Tea-hee Han),임성훈(Sung-Hun Lim),황종선(Jong-Sun Hwang) 한국조명·전기설비학회 2006 한국조명·전기설비학회 학술대회논문집 Vol.2006 No.5월
We investigated the quench characteristics of a flux-lock type superconducting fault current limiter (SFCL) according to the number of the superconducting elements at the subtractive polarity winding of a transformer. The flux-lock type SFCL consists of the transformer with a primary winding and two secondary windings connected in parallel, and the superconducting element was connected with secondary winding in series, respectively. The applied voltage at that time was 200V. when two superconducting elements of the secondary winding was connected in parallel, the peak lie current increased up to 99A, while that flowing in a superconducting element in conventional flux-lock type SFCL showed 50A under the same conditions. the impedance of secondary winding under the same situation showed the opposite behavior. This enabled the parallel structure to be easy to increase the capacity of power system. in the meantime, The quench between two superconducting elements in the SFCL with two secondary windings connected in parallel was achieved simultaneously. While the quench-starting point was slightly different in the SFCL with two superconducting elements connected in series. We found that the parallel connection between the secondary windings increased the power capacity and let quench characteristics improve through their mutual linkage.
초음파 모터 구동 6자유도 역감 장치를 이용한 가상 자석의 구현
김동옥(Dong-Ok Kim),강원찬(Won-Chan Kang),오금곤(Geum-Kon Oh),김영동(Young-Dong Kim) 전력전자학회 2000 전력전자학술대회 논문집 Vol.2000 No.11
This paper proposes virtual-magnetic system<br/> by a force-reflecting interface to drive a ultrasonic motors(USMs) To approach virtual magnet in graphic, the 6 DOF force-reflecting interfaces provides force feedback to users as if i is magnetic-force. So, users can feel real magnet Effectively to display the magnetic-force, we need the interfaces with specific characteristics<br/> such as low inertia, almost zero friction and very high stiffness. As an actuator for the interface, the USMs have many good advantages satisfied these conditions over conventional servo motors.<br/> To estimate capability of this virtual-magnetic system, we did an experiment of magnetism based on coulomb's law. when Coulmb's low apply this experiment, it is very conformable to real magnet
초전도 소자 병렬 연결에 따른 자속구속형 한류기의 전류제한 특성
박형민(Hyoung-Min Park),조용선(Yong-Sun Cho),최효상(Hyo-Sang Choi),오금곤(Geum-Kon Oh),정수복(Soo-Bok Jung),임성훈(Sung-Hun Lim),최명호(Myong-Ho Choi) 한국조명·전기설비학회 2007 한국조명·전기설비학회 학술대회논문집 Vol.2007 No.5월
We investigated the quench characteristics of a superconducting element, two superconducting elements in order to increase the current capacity of flux lock type SFCL. The flux-lock type SFCL consisted of the transformer with a primary winding and a secondary winding connected in parallel, and the superconducting element was connected with secondary winding in series. The applied voltage at that time was 160√3. We found that the parallel connection between the superconducting elements increased the power capacity and let quench characteristics improve through their mutual linkage.