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조철호(Chul-Ho Cho),고용준(Yong-Joon Ko),안유민(Yoomin Ahn),이성환(Sung-Hwan Lee),조남규(Nahmgyoo Cho),맹준호(Joon-Ho Maeng),이병철(Byung-Chul Lee),황승용(Seung-Yong Hwang) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5
Immunoassay is a method for clinical diagnoses and biochemical studies with antibody-antigen reaction. However, immunoassay takes a lot of time and expensive reagents. In this research, we report a microbiochip which can detect the electric signal from biochemical reaction with high sensitivity and low sample volume using micro bead. Gold electrode was fabricated on glass substrate using conventional MEMS technology for detecting the electric signal.
3 자유도 위치 결정 기구의 위치 오차 평가 및 보정법에 대한 불확도 분석
박재준(Jae-jun Park),엄형욱(Hyungwook Eom),조남규(Nahmgyoo Cho) Korean Society for Precision Engineering 2006 한국정밀공학회지 Vol.23 No.7
This study analyzes the uncertainty of the compensation method of a sensing error of three-DOF measuring system. This compensation method utilizes a reference coordinate system using a three point by moving a position of an endpoint of a three-DOF manipulator. The coordinate transformation between the three-DOF manipulator and the measuring system is identified by the reference coordinate system. According to the concept of this compensation method, each positioning error at any position of the end-point of the manipulator is derived. Uncertainty analyses of the compensation values on the basis of sensitivity analysis and Monte Carlo simulation are used to investigate a feasibility and effectiveness of the compensation method.
원통 축 방향의 표면거칠기 측정을 위한 시료의 자세 보정
조남규 한국공작기계학회 1996 한국생산제조학회지 Vol.5 No.4
A new technique and theory are proposed which correct orientation of a cylinder to perform a reliable measurement of the surface profile. We analyze characteristics of machined surfaces, e. g. ground, lapped and turned surfaces. Based upon the results, the optimum correction technique is derived by the statistical method. To verify the techniques, measurements are carried out by using the contact stylus profilometer on a controllable table. The measurement shows that surface information of cylinders can be acquired with high accuracy.