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|Title: ||Development of a flexure-based, force-sensing microgripper for micro-object manipulation|
|Authors: ||JAYARAM, K|
|Issue Date: ||2010|
|Publisher: ||IOP PUBLISHING LTD|
|Citation: ||JOURNAL OF MICROMECHANICS AND MICROENGINEERING, 20(1), -|
|Abstract: ||This paper presents the design and development of a flexure-based microgripper, accompanied with a real-time, vision-based force sensing system to handle objects of various sizes ranging from 100 mu m to 1 mm. A simulation-based design methodology is adopted to develop an initial microgripper design, which is then optimized using theoretical modeling. The final prototype developed generated a large stroke length of over 500 mu m with high-deflection magnification (ratio of the end deflection (output) to the input deflection) of 3.52. A spring system has been incorporated into the microgripper for easy measurement and control of the gripping forces. The web-camera-based visual system enables real-time force measurement with a resolution of 2.37 mN and can be operated in both manual and automatic modes to control the applied forces. The system has successfully demonstrated gripping of a variety of micro-objects including a 100 mu m human hair and a 1 mm steel rod with forces as small as 43 mN and 159 mN, respectively.|
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