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강득수,서태원,김종원 대한기계학회 2008 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.22 No.4
This paper presents a micro-positioning platform based on a unique parallel mechanism developed by the authors. The platform has a meso-scale rectangular shape whose size is 20 x 23 mm. The stroke is 5 mm for both the x- and y-axes and 100 degrees for the α-axis. The platform is actuated by three sets of dual stage linear actuators: a linear motor for rough positioning and a piezo actuator for fine positioning. The developed micro-positioning platform has a measurement system that consists of three linear sensors. The position and orientation values of the movable platform can be measured directly and used in a feedback control system. Selecting 18 kinematic error parameters of a measurement system (feedback control system), a two-stage kinematic calibration method is proposed. Constant error parameters are found in the first stage and variable error parameters are found in the second stage of kinematic calibration. After kinematic calibration the position error is reduced to within 0.5㎛ and error reduction rate is over 90%.
강득수(Deuksoo Kang),김종원(Jongwon Kim) 한국정밀공학회 2004 한국정밀공학회 학술발표대회 논문집 Vol.2004 No.10월
This paper describes the mechanism of parallel micro machine platform and its feedback control system for acquiring high accuracy. The parallel micro machine platform that has developed has 5x5x5 work-space and sub-micron accuracy. For the high accuracy, the feedback control system is important but errors in machining and assembling are inevitable. Kinematic calibration is important for this reason. In this paper, various error components are introduced and the effects of error component are analyzed.
강득수(Deuk-Soo Kang),양해술(Hae-Sool Yang) 한국콘텐츠학회 2010 한국콘텐츠학회논문지 Vol.10 No.8
ESM이란 방화벽, 침입탐지시스템(IDS), 가상시설망(VPN) 등 다양한 종류의 보안 솔루션을 하나로 모은 통합보안관리시스템으로 본 연구에서의 ESM 소프트웨어의 품질평가 모델을 개발하는 것은 ESM 소프트웨어를 효과적으로 보호하기 위한 기초가 된다고 할 수 있다. 본 논문에서는 ESM 소프트웨어 분야 기반기술을 조사하고 ESM 소프트웨어 기술, 시장, 표준 및 시험?인증 동향을 조사, 분석하여 ESM 소프트웨어의 평가 모델을 개발하고자 한다. 즉, ESM 소프트웨어의 요구사항을 반영하여 시험 모듈을 개발하여 시험방법과 더불어 시험사례를 제안하였다. ESM can do and wishes to investigate ESM software field base technology and investigate ESM software technology, market, standard and evaluation·certification trend and develop evaluation model of ESM software that it becomes foundation to protect ESM software effectively that develop quality evaluation model of ESM software in this research by integration security administration system that gather fire wall, IDS, VPN etc. various kind of security solution by one. That is, because reflecting requirement of ESM software, develop evaluation module and proposed evaluation example along with method of exam.
높은 회전성능(100°)을 가지는 초정밀 위치결정용 마이크로 병렬기구 플랫폼의 개발
윤용하(Yongha Yoon),강득수(Deuksoo Kang),서태원(Taewon Seo),김홍석(Hongseok Kim),성태종(Taijong Sung),김종원(Jongwon Kim) 한국정밀공학회 2006 한국정밀공학회 학술발표대회 논문집 Vol.2006 No.5월
This paper presents a micro-positioning platform based on the unique parallel mechanism recently developed by the authors. The platform has a meso-scale rectangular shape whose size is 20 × 23 ㎜. The stroke is 5 ㎜ for both the x- and yaxis and 100 degrees for the α-axis(the rotational axis along the x-axis). The platform is actuated by the three sets of twostage linear actuators: a linear motor for rough positioning and a piezo actuator for fine positioning. The platform is already assembled. Experimental results of the positioning measurements and control performance are presented.