Janno Torop "Carbide-derived carbon-based electromechanical actuators" | University of Tartu

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Contacts of UT units

Faculty of Arts and Humanities
Faculty phone: 
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Faculty address: 
Jakobi 2, rooms 116–121, 51005 Tartu
  • Dean's Office
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    Faculty address: 
    Jakobi 2, rooms 116–121, 51005 Tartu
  • Institute of History and Archaeology
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    Jakobi 2, 51005 Tartu
  • Institute of Estonian and General Linguistics
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    Jakobi 2, 51005 Tartu
  • Institute of Philosophy and Semiotics
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    Jakobi 2, rooms 309–352, 51005 Tartu
  • Institute of Cultural Research
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    Ülikooli 16, 51003 Tartu
  • School of Theology and Religious Studies
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    Ülikooli 18–310, 50090 Tartu
  • College of Foreign Languages and Cultures
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  • Viljandi Culture Academy
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Faculty of Social Sciences
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Lossi 36, 51003 Tartu
  • Dean's Office
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Faculty of Science and Technology
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  • Estonian Marine Institute
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  • Institute of Physics
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  • Tartu Observatory
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  • Youth Academy
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    Uppsala 10, 51003 Tartu
  • Institute of Genomics
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    Faculty address: 
    Riia 23b, 51010 Tartu
  • Museum
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    Lossi 25, 51003 Tartu
  • University of Tartu Natural History Museum and Botanical Garden
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    Vanemuise 46, 51003 Tartu
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    Faculty address: 
    Ülikooli 18a, 51005 Tartu
  • Centre for Entrepreneurship and Innovation
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    +372 737 6339
    Faculty address: 
    Lossi 3, III floor, 51003 Tartu
  • University Office in Tallinn
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    +372 737 6600
    Faculty address: 
    Teatri väljak 3, 10143 Tallinn
  • Estates Office
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    Faculty address: 
    Ülikooli 18a, 51005 Tartu
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    Jakobi 4, 51005 Tartu
  • Grant Office
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    Lossi 3, III floor, 51003 Tartu
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    Ülikooli 18a, 51005 Tartu
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    Ülikooli 18, 50090 Tartu
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  • University of Tartu Press
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  • University of Tartu Foundation
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  • View all other units

Janno Torop "Carbide-derived carbon-based electromechanical actuators"

Date: 
16.08.2012 - 12:15 to 13:45

Supervisors: Prof. Alvo Aabloo ja Dr. Mati Arulepp

Opponent: Prof. Edwin Jager, Linköping University, Sweden

Summary:
A major goal in soft polymeric electromechanical actuator research is to develop a device that operates rapidly with high displacement at low voltage applied, and has low energy consumption at the same time. Current technologies based on electromotors and pneumatic actuators make the final product often too noisy, heavy and too complicated. For that reason a notable demand exist for soft, simple and miniature actuation devices in many technological solutions. For robotics and medical applications a desired actuation source should guarantee steady operation in different environments.

This thesis introduces experiment series carried out for carbide-derived carbon (CDC) based actuator devices in order to study relations between porosity parameters onto generated strain of actuators. In linear actuator configuration the effects based on charge induced volumetric expansion of electrolyte impregnated CDC electrodes were investigated. Test cells with different electrolytes were assembled and electromechanical response was characterized. Dry-type bending actuators which had three layer configuration of two polymer supported carbonaceous electrodes and thin polymeric membrane between them were developed and analyzed. In addition to electromechanical characterization, electrochemical measurements were simultaneously carried out to describe energy consumption of both CDC-based actuators. The studies have pointed out that actuators with gradual displacement/strain characteristics can be prepared from wide selection of precursor carbides available to determine porosity of final carbon material and therefore influence the performance of actuators based on CDC. This unique property together with their facile preparation method, flexibility, remarkable specific capacitance, and low driving voltage enable the CDC-based actuators application in many areas such as artificial muscles, and hybrid actuator/energy conversion devices.

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Location: 
Nooruse 1 - 121
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