Micro-force sensing mobile microrobots

Wuming Jing; David J. Cappelleri

doi:10.1117/12.2183259

18 June 2015 Micro-force sensing mobile microrobots

Wuming Jing, David J. Cappelleri

Proceedings Volume 9494, Next-Generation Robotics II; and Machine Intelligence and Bio-inspired Computation: Theory and Applications IX; 949405 (2015) https://doi.org/10.1117/12.2183259
Event: SPIE Sensing Technology + Applications, 2015, Baltimore, MD, United States

Abstract

This paper presents the first microscale micro force sensing mobile microrobot. The design consists of a planar, vision-based micro force sensor end-effector, while the microrobot body is made from photoresist mixed with nickel particles that is driven by an exterior magnetic field. With a known stiffness, the manipulation forces can be determined from observing the deformation of the end-effector through a camera attached to an optical microscope. After analyzing and calibrating the stiffness of a micromachined prototype, proof of concept tests are conducted to verify this microrobot prototype possessing the mobility and in-situ force sensing capabilities. This microscale micro-Force Sensing Mobile Microrobot (μFSMM) is able to translate with the speed up to 10 mm=s in a fluid environment. The calibrated stiffness of the micro force sensor end-effector of the μFSMM is on the order of 10^-2 N=m. The force sensing resolution with the current vision system is approximately 100 nN.

Citation Download Citation

Wuming Jing and David J. Cappelleri "Micro-force sensing mobile microrobots", Proc. SPIE 9494, Next-Generation Robotics II; and Machine Intelligence and Bio-inspired Computation: Theory and Applications IX, 949405 (18 June 2015); https://doi.org/10.1117/12.2183259

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