Publication result detail

INFLUENCE OF PIEZOELECTRIC MATERIAL PROPERTIES ON IMPEDANCE CHARACTERISTIC AND IMPROVEMENTS OF CALIBRATION EQUIPMENT

KREJČÍ, J.

Original Title

INFLUENCE OF PIEZOELECTRIC MATERIAL PROPERTIES ON IMPEDANCE CHARACTERISTIC AND IMPROVEMENTS OF CALIBRATION EQUIPMENT

English Title

INFLUENCE OF PIEZOELECTRIC MATERIAL PROPERTIES ON IMPEDANCE CHARACTERISTIC AND IMPROVEMENTS OF CALIBRATION EQUIPMENT

Type

Paper in proceedings outside WoS and Scopus

Original Abstract

This paper deals with finite element simulations of impedance characteristics piezoelectic elements utilized in sensors of acoustic emission (AE). Coefficients of piezoelectric material are changed to evaluate the sensitivity to their variation in case they are not known precisely, so to which extent can they influence the sensitivity of the sensor. Result showed sensitivity on coefficient in c-matrix, mainly to coefficients c11 and c13. Second investigated topic is issue with test stand for calibration of AE sensors, where output of force sensor was affected by parasite signal. By contactless measurement with laser interferometer was discovered the parasite signal is caused by mechanic of the system and it is no threat for the measuring chain.

English abstract

This paper deals with finite element simulations of impedance characteristics piezoelectic elements utilized in sensors of acoustic emission (AE). Coefficients of piezoelectric material are changed to evaluate the sensitivity to their variation in case they are not known precisely, so to which extent can they influence the sensitivity of the sensor. Result showed sensitivity on coefficient in c-matrix, mainly to coefficients c11 and c13. Second investigated topic is issue with test stand for calibration of AE sensors, where output of force sensor was affected by parasite signal. By contactless measurement with laser interferometer was discovered the parasite signal is caused by mechanic of the system and it is no threat for the measuring chain.

Keywords

acoustic emission, simulation, COMSOL, impedance characteristic, laser interferometry

Key words in English

acoustic emission, simulation, COMSOL, impedance characteristic, laser interferometry

Authors

KREJČÍ, J.

RIV year

2021

Released

27.04.2021

Publisher

Vysoké učení technické v Brně

Location

Brno

ISBN

978-80-214-5942-7

Book

Proceedings I of the 27th Conference STUDENT EEICT 2021 General Papers

Pages from

426

Pages to

430

Pages count

5

URL

http://www.feec.vutbr.cz/conf/EEICT/archiv/sborniky/EEICT_2021_sbornik_1.pdf

BibTex

@inproceedings{BUT171573,
  author="Jakub {Krejčí}",
  title="INFLUENCE OF PIEZOELECTRIC MATERIAL PROPERTIES ON IMPEDANCE CHARACTERISTIC AND IMPROVEMENTS OF CALIBRATION EQUIPMENT",
  booktitle="Proceedings I of the 27th Conference STUDENT EEICT 2021
General Papers",
  year="2021",
  pages="426--430",
  publisher="Vysoké učení technické v Brně",
  address="Brno",
  isbn="978-80-214-5942-7",
  url="http://www.feec.vutbr.cz/conf/EEICT/archiv/sborniky/EEICT_2021_sbornik_1.pdf"
}