Publication detail

Piezo-actuated device for a bio-structural monitoring application through vibration-based condition and electromechanical impedance measurements

BARCO, D. TINOCO, H. A.. CARDONA, C. I. PEÑA, F. M.

Original Title

Piezo-actuated device for a bio-structural monitoring application through vibration-based condition and electromechanical impedance measurements

Type

journal article in Scopus

Language

English

Original Abstract

This study presents a numerical and experimental development of a piezo-actuated device used for monitoring the stiffness variations of its support through electromechanical impedance measurements. The piezo-device and its components define a clamped beam system activated dynamically by two piezo-transducers that transmit vibrations to the support (monitoring substrate). An harmonic finite element analysis was carried out to understand the effects of the substrate properties on the dynamics of the piezo-device. Experimental tests corroborated the simulations with the correspondence of modal shapes and frequency response functions (FRFs) when the substrate varies its stiffness. A biomedical application was conducted in a bone specimen with three embedded teeth to monitor the stiffness variations induced by drillings in the bone. Results showed that the bone stiffness monitoring could be possible through the teeth due to that the drillings effect were quantified by electrical impedance signals.

Keywords

Biomedical applications, Electrical impedance,Electromechanical impedance, Experimental development, Frequency-response functions,Stiffness variations,Structural monitoring applications, Substrate properties

Authors

BARCO, D.; TINOCO, H. A..; CARDONA, C. I.; PEÑA, F. M.

Released

31. 10. 2019

Publisher

Institute of Physics Publishing

ISBN

1757-8981

Periodical

IOP Conference Series: Materials Science and Engineering

Year of study

657

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

7

Pages count

7

URL

https://iopscience.iop.org/article/10.1088/1757-899X/657/1/012031/meta

BibTex

@article{BUT165772,
  author="BARCO, D. and TINOCO, H. A.. and CARDONA, C. I. and PEÑA, F. M.",
  title="Piezo-actuated device for a bio-structural monitoring application through vibration-based condition and electromechanical impedance measurements",
  journal="IOP Conference Series: Materials Science and Engineering",
  year="2019",
  volume="657",
  number="1",
  pages="1--7",
  doi="10.1088/1757-899X/657/1/012031",
  issn="1757-8981",
  url="https://iopscience.iop.org/article/10.1088/1757-899X/657/1/012031/meta"
}