A novel mechanical-mechanism enhanced thermomagnetic tweezer demonstrating gripping of ferromagnetic and non-ferromagnetic objects

Hsin Min Wang, Tien-Kan Chung, Chin Chung Chen, Chih Cheng Cheng, Chu Yi Lin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this article, we demonstrate a mechanical-mechanism enhanced thermomagnetic tweezer. The tweezer which utilizes a thermal-magnetic-mechanical converting consists of two cross-jointed Al arms, two Gd sheets, two NdFeB hard magnets, two thermoelectric generators (TEGs), and a ball bearing set. When comparing conventional thermomagnetic grippers, our thermomagnetic tweezer can grip either ferromagnetic or non-ferromagnetic objects and avoid producing temperature-influence to the gripped objects. Experimental results show that we can control TEGs to generate a temperature difference to operate the tweezer to grip small ferromagnetic objects (such as NdFeB hard magnet) and other non-ferromagnetic objects (such as PMMA bulk). The maximum gripping force produced by the tweezer operated by applying the DC current of 1.3 A with the voltage of 0.85 V is 0.59 newton. The corresponding gripping and releasing duration is 7.9 seconds and 8.1 seconds, respectively. According to these results, our tweezer would produce more practical objects-gripping applications.

Original languageEnglish
Title of host publicationIntegrated System Design and Implementation; Structural Health Monitoring; Bioinspired Smart Materials and Systems; Energy Harvesting
PublisherAmerican Society of Mechanical Engineers
ISBN (Electronic)9780791857304
DOIs
StatePublished - 1 Jan 2015
EventASME 2015 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2015 - Colorado Springs, United States
Duration: 21 Sep 201523 Sep 2015

Publication series

NameASME 2015 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2015
Volume2

Conference

ConferenceASME 2015 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2015
CountryUnited States
CityColorado Springs
Period21/09/1523/09/15

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  • Cite this

    Wang, H. M., Chung, T-K., Chen, C. C., Cheng, C. C., & Lin, C. Y. (2015). A novel mechanical-mechanism enhanced thermomagnetic tweezer demonstrating gripping of ferromagnetic and non-ferromagnetic objects. In Integrated System Design and Implementation; Structural Health Monitoring; Bioinspired Smart Materials and Systems; Energy Harvesting (ASME 2015 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2015; Vol. 2). American Society of Mechanical Engineers. https://doi.org/10.1115/SMASIS2015-9048