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Comparison of dynamic characteristics of active sensing methods of Ionic Polymer Metal Composite (IPMC)

Conference paper (2020)

Authors

Wan Hasbullah Mohd Isa Universiti Malaysia Pahang, Mechatronic Systems Design
Andres Hunt Mechatronic Systems Design
S. Hassan Hossein Nia Mechatronic Systems Design
Research Group
Mechatronic Systems Design
Copyright: © 2020 W.H.B. Mohd Isa, A. Hunt, S. Hassan HosseinNia
DOI: https://doi.org/10.1117/12.2558491
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Published Date

2020

Language

English

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Research Group

Mechatronic Systems Design

Abstract

Limitations of conventional actuators and sensors in small-scaled and complex devices have diverted the researches' attentions towards smart material transducers such as ionic polymer-metal composites (IPMCs). In addition to actuation capabilities, IPMCs generate voltage when subjected to mechanical deformation. Utilization of IPMCs as sensors has been studied much less than IPMC actuation, and direct comparison of sensing methods is required for efficient implementation. This paper characterizes IPMC active sensing methods i.e. voltage, current, and charge in terms of frequency responses, coherence, noise, and repeatability. IPMC is excited mechanically between 0.08 Hz and 60 Hz under identical experimental conditions, while signal and displacement are measured. The results provide an absolute comparison for IPMC active sensing dynamic methods, for a typical IPMC (Nafion, Pt, Na+).

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