Events

Technology Lecture: Micromanipulation Using Magnetically-Levitated Microrobots

Date: 16 Jun 2011 - 16 Jun 2011

Venue: SIMTech Training Room 1, Level 3

This lecture has been postponed to 8 July 2011

 

Introduction
This lecture aims to showcase the development of a magnetically levitated microrobot and explore possible applications for such micromanipulation systems. The microrobot can be operated in an enclosed environment. As an application of the system, miniature items can be transported and assembled within harsh/hazardous environments. The microrobot has a net mass of 8.1 g, and it can elevate and manipulate objects with masses of up to 1.5 g within a volume of approximately 30-mm cube with a precision of 0.05 mm. Participants will gain a better understanding of the area of magnetic levitation that can be achieved.

Programme

2.15pm              Registration

2.30pm              Presentation by Dr Behrad Khamesee
3.45pm              Q&A
4.00pm              Refreshment     
4.30pm              End of Programme

Abstract
In this talk, a novel technique for micromanipulation using magnetic levitation is presented. The design and development of a microrobotic system based on magnetic principles is described. A teleoperated microrobot is levitated and moved within a 3D space inside a magnetic field with multi-degrees of freedom. The microrobot can be operated in an enclosed environment by transferring magnetic energy and optical signals from outside. As an application of the system, miniature items can be transported and assembled within harsh/hazardous environments.The microrobot has a net mass of 8.1 g, and it can elevate and manipulate objects with masses of up to 1.5 g within a volume of approximately 30-mm cube with a precision of 0.05 mm. The integration of the system with a haptic device brings a novel magnetic-haptic micromanipulation platform with promising potential for extensive biological and biomedical applications. A human operator controls the motion of the microrobot via a master manipulator for dexterous micromanipulation tasks. The operator can feel force during micro domain tasks if the microrobot encounters a stiff environment. The effect of hard contact is fed back to the operator’s hand in a 20×20×30 mm3 working envelope of the proposed platform. Conducting several experiments in different conditions, RMS of position tracking errors varied from 20 to 40 μm.

About the Speaker
Dr Behrad Khamesee is an Associate Professor in the Department of Mechanical and Mechatronics Engineering, University of Waterloo, . He is the Director of MagLev Microrobotics Laboratory and an integral member of the Waterloo Center for Automotive Research (WATCAR) at the University of Waterloo . His research interests and expertise include design, modeling, and control of advanced mechatronics systems, particularly microrobotic magnetic levitation and semi-active electromagnetic dampers for vehicles. He has 65 refereed Journal and conference papers. In 2009, his research group developed the world’s smallest magnetically-levitated microrobot which is equipped with a gripper and has no on-board power supply. This achievement was featured in several news releases in media such as the Economist magazine (Science and Technology: Look, no wires) April 2009 issue. Dr Khamesee is involved in conferences program committees, has organised several sessions at international conferences, and is a technical reviewer for several IEEE Journals.

Who Should Attend  
Precision engineering professionals, R&D managers, researchers, academic staff, engineering students.

Registration
This is a non-chargeable seminar and pre-registration is required. Seats are available on a first-come, first-served basis. To reserve a place, please register online.  

Contact Us
For technical enquiries, Dr Teo Chek Sing, Scientist, Email: csteo@SIMTech.a-star.edu.sg; Tel: 6793 8437
For general enquiries: Alice Koh, Email: kohth@scei.a-star.edu.sg; Tel: 6793 8249