Chung Yuan Christian University

About: Chung Yuan Christian University is a education organization based out in Taoyuan City, Taiwan. It is known for research contribution in the topics: Membrane & Fuzzy logic. The organization has 9819 authors who have published 11623 publications receiving 213139 citations. The organization is also known as: Tiong-gôan-tāi-ha̍k & CYCU.

Error Model and Accuracy Analysis of a Six-DOF Stewart Platform

Abstract: Precision machining operations necessitate highly accurate, rigid, and stable machine-tool structures. In response to this need, parallel architecture machines, based on the concepts of the Stewart Platform, are emerging. In this paper considering major inaccuracy factors related to the manufacture, geometry, and kinematics, of such machines, first and second order error models are presented, and followed by a comparative assessment of these models in conjunction with illustrative examples. Furthermore, in order to understand the character and propagation of errors of 6-DOF Stewart Platform based machine tools, sensitivity analysis is adopted to describe the contribution of each error component to the total position and orientation error of the mechanism. An automated error analysis system that computes and graphically depicts the error distributions throughout the workspace along with the results of sensitivity analysis is developed and demonstrated.

Single fully differential current conveyor biquad filters

Abstract: The authors present two new filter biquads based on the recently introduced fully differential current conveyor (FDCCII). The biquads employ a single FDCCII, two grounded resistors and two grounded capacitors, which are the minimum components, necessary to realize a 2nd-order filtering response (low-pass, high-pass, band-pass, band-reject, and all-pass). This is unlike the biquads reported in [1] which employ more active and passive components. Simulation results are included, validating the theoretical analysis.