Search results

Filter

Filetype

Your search for "*" yielded 531864 hits

Dynamic Model Based Friction Compensation on the Furuta Pendulum

The Furuta pendulum is used to evaluate a friction compensator based on the dynamic LuGre friction model. The effect of friction compensation is very well illustrated by reduction of limit cycles when stabilising the pendulum. The observer based LuGre friction compensator is compared with classical Coulomb and Stiction compensator schemes. Existing analysis of the LuGre observer is extended to obs

Ultrasonic Detection in Robotic Environments

Based on information produced by a 200 kHz ultrasonic echo device developed for robotics and other industrial purposes, a method for object identification was developed and is presented in this paper. Interpretation of the echos from the reflecting objects, complexity analysis and information extraction were made by system identification methods such as impulse response analysis and state-space re

Comparison of the image rejection between the passive and the Gilbert mixer

This paper presents a comparison of the image rejection between Gilbert mixer and the passive mixer. A simple model for mixers is set up, and the image rejection performance of passive and Gilbert mixer is analyzed based on it. Simulations and calculations were done to compare the image rejection of the two mixers. The results show that the Gilbert mixer, comparing with the passive one, shows a st

The Parish in the Audit Society

What happens when global market-oriented models for auditing and quality assessment are taken up by local parishes? The paper is based on case studies where a number of parishes and auditing models provide the object of study. Parishes are to some extent restrictive about embracing new ideas on auditing and quality control. With assistance from neo-institutional theory it can be shown that the co