TAILIEUCHUNG - IMechatronic Systems, Applications Edited by Annalisa Part 3

Tham khảo tài liệu 'imechatronic systems, applications edited by annalisa part 3', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 34 Mechatronic Systems Applications Zhou Y. Liu W. Huang P. 2007 . Laser-activated RFID-based Indoor Localization System for Mobile Robots Proceedings of IEEE International Conference on Robotics and Automation pp. 4600 - 4605 ISBN 1-4244-0601-3 Roma Italy April 2007. 3 Contact sensor for robotic application Petr Krejci Brno University of Technology Czech Republic Abstract The chapter deals with design of contact force vector sensor. The information about interaction between robotic parts and surroundings is necessary for intelligent control of robot behavior. The simplest example of such interaction is mechanical contact between working part of robot and surroundings. Than the knowledge of contact characteristic is important for robot control. This mechanical contact could be described by vector of contact force which includes information about force magnitude as well as information about orientation and contact point. The information about contact force vector will allow to predict the geometry of object which is in the contact with robots parts and modify robots behaviour. This kind of sensor can be used for instance for control of robotic hand gripping force as well as for detection of collision between robot and surrounding. 1. Introduction The design of contact force sensor was published by Schwarzinger 1992. This design requires application of 24 strain gauges on active part of sensor. The quantity of strain gauges is sufficient for analytical determination of contact force vector. Demand on small size of sensor for a lot of robotic applications Grepl R. Bezdicek M. Chmelicek J. Svehlak M. 2004 disable application of a large number of strain gauges. Quantity of applied strain gauges and their size is limiting factor for using such design in our applications. Our design of contact sensor supposes to use only three strain gauges on active part of sensor. However three strain gauges are not enough for the analytical expression of contact force vector. Due to .

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