NDLI: Research on PZT bimorph microgripper system

Content Provider	IEEE Xplore Digital Library
Author	Liu Chang Xinhan Huang Ming Wang
Copyright Year	2010
Description	Author affiliation: Department of Control Science and Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China (Liu Chang; Xinhan Huang; Ming Wang)
Abstract	Many kinds of microgrippers have been developed for handling and manipulating micro-sized objects in the fields of various applications. However, the micro-force sensing is still one of the most troublesome problems to improve the reliability of manipulation. To circumvent the problem, in this paper, a microgripper with the structure of dual cantilevers, which is driven by two PZT bimorphs, was designed for the requirement of microassembly tasks. The piezoelectric bimorph model was built, and the displacement-voltage relationship was analysed. In order to obtain the micro force, a Wheatstone bridge circuit that was made up of resistance strain gauge sticked on the root of the PZT bimorph was introduced, sensing the signal because of the strain of the cantilever. Then, according to the sensor signal, PC monitoring system can adjust actuating voltage to achieve safe handling. The experiment results testify that the gripper can work reliably and safely, it satisfies the task of micro assembly.
Starting Page	5498
Ending Page	5502
File Size	1014477
Page Count	5
File Format	PDF
ISBN	9781424467129
e-ISBN	9781424467129
DOI	10.1109/WCICA.2010.5554132
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-07-07
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Grippers Strain Microassembly Force Robot sensing systems Carbon Piezoelectric polarization micro vision PZT bimorph microgripper microassembly robot
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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