Thermal energy harvesting based on ferromagnetic shape memory alloy microactuation

M. Gueltig; B. Haefner; M. Ohtsuka; M. Kohl

doi:10.1109/Transducers.2013.6627388

Thermal energy harvesting based on ferromagnetic shape memory alloy microactuation

M. Gueltig, B. Haefner, M. Ohtsuka, M. Kohl

Division of Inorganic Material Research

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

6 Citations (Scopus)

Abstract

This paper presents a new principle of harvesting thermal energy at small temperature differences based on bidirectional actuation of a ferromagnetic shape memory alloy (FSMA) cantilever. The thermally induced change of magnetization of the ferromagnetic cantilever tip is used to generate a current according to Faraday's law. The layout, fabrication and performance of a first demonstrator are shown operating at frequencies and amplitudes of 80 Hz and several hundred microns, respectively. For a pick-up coil of 1000 turns, the maximum current is about 10 μA corresponding to a power density of 0.8 μW/cm³.

Original language	English
Title of host publication	2013 Transducers and Eurosensors XXVII
Subtitle of host publication	The 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013
Pages	2803-2806
Number of pages	4
DOIs	https://doi.org/10.1109/Transducers.2013.6627388
Publication status	Published - 2013 Dec 1
Event	2013 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013 - Barcelona, Spain Duration: 2013 Jun 16 → 2013 Jun 20

Publication series

Name	2013 Transducers and Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013

Other

Other	2013 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013
Country/Territory	Spain
City	Barcelona
Period	13/6/16 → 13/6/20

Keywords

Ferromagnetic shape memory alloy
bi-directional actuation
energy harvesting
film
magnetron sputtering

ASJC Scopus subject areas

Hardware and Architecture
Electrical and Electronic Engineering

Access to Document

10.1109/Transducers.2013.6627388

Cite this

Gueltig, M., Haefner, B., Ohtsuka, M., & Kohl, M. (2013). Thermal energy harvesting based on ferromagnetic shape memory alloy microactuation. In 2013 Transducers and Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013 (pp. 2803-2806). [6627388] (2013 Transducers and Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013). https://doi.org/10.1109/Transducers.2013.6627388

Thermal energy harvesting based on ferromagnetic shape memory alloy microactuation. / Gueltig, M.; Haefner, B.; Ohtsuka, M. et al.

2013 Transducers and Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013. 2013. p. 2803-2806 6627388 (2013 Transducers and Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Gueltig, M, Haefner, B, Ohtsuka, M & Kohl, M 2013, Thermal energy harvesting based on ferromagnetic shape memory alloy microactuation. in 2013 Transducers and Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013., 6627388, 2013 Transducers and Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013, pp. 2803-2806, 2013 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013, Barcelona, Spain, 13/6/16. https://doi.org/10.1109/Transducers.2013.6627388

Gueltig M, Haefner B, Ohtsuka M, Kohl M. Thermal energy harvesting based on ferromagnetic shape memory alloy microactuation. In 2013 Transducers and Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013. 2013. p. 2803-2806. 6627388. (2013 Transducers and Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013). doi: 10.1109/Transducers.2013.6627388

Gueltig, M. ; Haefner, B. ; Ohtsuka, M. et al. / Thermal energy harvesting based on ferromagnetic shape memory alloy microactuation. 2013 Transducers and Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013. 2013. pp. 2803-2806 (2013 Transducers and Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013).

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abstract = "This paper presents a new principle of harvesting thermal energy at small temperature differences based on bidirectional actuation of a ferromagnetic shape memory alloy (FSMA) cantilever. The thermally induced change of magnetization of the ferromagnetic cantilever tip is used to generate a current according to Faraday's law. The layout, fabrication and performance of a first demonstrator are shown operating at frequencies and amplitudes of 80 Hz and several hundred microns, respectively. For a pick-up coil of 1000 turns, the maximum current is about 10 μA corresponding to a power density of 0.8 μW/cm3.",

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AB - This paper presents a new principle of harvesting thermal energy at small temperature differences based on bidirectional actuation of a ferromagnetic shape memory alloy (FSMA) cantilever. The thermally induced change of magnetization of the ferromagnetic cantilever tip is used to generate a current according to Faraday's law. The layout, fabrication and performance of a first demonstrator are shown operating at frequencies and amplitudes of 80 Hz and several hundred microns, respectively. For a pick-up coil of 1000 turns, the maximum current is about 10 μA corresponding to a power density of 0.8 μW/cm3.

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Thermal energy harvesting based on ferromagnetic shape memory alloy microactuation

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