A Setup for the Performance Characterization and Traceable Efficiency Measurement of Magnetostrictive Harvesters

Author

Zucca, Mauro ; Callegaro, Luca

Author_Institution

Electromagn. Div., Ist. Naz. di Ricerca Metrol., Turin, Italy

Volume

64

Issue

6

fYear

2015

fDate

Jun-15

Firstpage

1431

Lastpage

1437

Abstract

This paper addresses the assessment of the performance and the efficiency of direct force magnetostrictive harvesters. A suitable test rig is presented, and its characteristics are discussed. Moreover, this paper shows some harvester parameters able to influence the measurement results. The setup measures the electromechanical energy conversion properties of direct force harvesters, with a relative expanded uncertainty in the 10^-3 range for the output power and 6 · 10^-2 for the efficiency. The system has been employed to characterize a novel harvester having a maximum measured efficiency of ~32%.

Keywords

energy harvesting; magnetostrictive devices; direct force magnetostrictive harvesters; electromechanical energy conversion properties; performance characterization; relative expanded uncertainty; setup measures; traceable efficiency measurement; Coils; Force; Frequency measurement; Magnetomechanical effects; Materials; Mechanical variables measurement; Uncertainty; Magnetomechanical effects; magnetostrictive devices; measurement techniques; measurement uncertainty; measurement uncertainty.;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2014.2375711

Filename

6982227