Publication detail

An Experimental Study of Temperature Effect on Material Parameters of PZT Ceramic Ring Used in Knock Sensors

KLUSÁČEK, S. FIALKA, J. BENEŠ, P. HAVRÁNEK, Z.

Original Title

An Experimental Study of Temperature Effect on Material Parameters of PZT Ceramic Ring Used in Knock Sensors

Czech Title

Experimentální studium vlivu teploty na materiálové parametry PZT keramického kroužku používaného ve snímači klepání

English Title

An Experimental Study of Temperature Effect on Material Parameters of PZT Ceramic Ring Used in Knock Sensors

Type

conference paper

Language

en

Original Abstract

This article describes experimental research on a ring from PZT ceramics used in knock sensors. The main aim of work is to investigate of temperature effects on piezoelectric material parameters and characterize the influence and changes these parameters on the properties of knock sensors. The purpose of the research is to fault diagnosis of active piezoelectric element for self-diagnostics of sensor in normal engine operation, because online health monitoring of knock sensors can prevent engine damage. Temperature changes significantly affect the material properties of the active element from PZT ceramics. Temperature deviations are compared on the impedance and phase characteristics in the working temperature range of engine and also related to different types of sensor damage. Depending on the material defects (cracks, fissures, fractures) and changes in the material coefficients related to the frequency characteristic can assess the degree of damage sensors and the prediction quality piezoelement inside the sensor. The experimental comparison results are conducted and are shown. A series of experiments were conducted on a knock sensor, where was changed piezoelectric elements with different number of cracks. The experiments demonstrate that the proposed experimental methods can be used for mentioned purpose and eliminate damage the engine by vibrations.

Czech abstract

Experimentální studium vlivu teploty na materiálové parametry PZT keramického kroužku používaného ve snímači klepání. (Jsou proměřeny různé modifikace snímačů klepání, na kterých byla definována závislost na teplotě v rozmezí pracovních teplot snímače.)

English abstract

This article describes experimental research on a ring from PZT ceramics used in knock sensors. The main aim of work is to investigate of temperature effects on piezoelectric material parameters and characterize the influence and changes these parameters on the properties of knock sensors. The purpose of the research is to fault diagnosis of active piezoelectric element for self-diagnostics of sensor in normal engine operation, because online health monitoring of knock sensors can prevent engine damage. Temperature changes significantly affect the material properties of the active element from PZT ceramics. Temperature deviations are compared on the impedance and phase characteristics in the working temperature range of engine and also related to different types of sensor damage. Depending on the material defects (cracks, fissures, fractures) and changes in the material coefficients related to the frequency characteristic can assess the degree of damage sensors and the prediction quality piezoelement inside the sensor. The experimental comparison results are conducted and are shown. A series of experiments were conducted on a knock sensor, where was changed piezoelectric elements with different number of cracks. The experiments demonstrate that the proposed experimental methods can be used for mentioned purpose and eliminate damage the engine by vibrations.

Keywords

knock sensor; ring; Sonox P502; temperature measurement; impedance analyzer

RIV year

2013

Released

03.12.2013

Publisher

Massey University

Location

Wellington, New Zealand

ISBN

978-1-4673-5221-5

Book

Proceedings of the 2013 Seventh International Conference on Sensing Technology

Edition

1

Edition number

1

Pages from

874

Pages to

879

Pages count

6

BibTex


@inproceedings{BUT101915,
  author="Stanislav {Klusáček} and Jiří {Fialka} and Petr {Beneš} and Zdeněk {Havránek}",
  title="An Experimental Study of Temperature Effect on Material Parameters of PZT Ceramic Ring Used in Knock Sensors",
  annote="This article describes experimental research on a ring from PZT ceramics used in knock sensors.  The main aim of work is to investigate of temperature effects on piezoelectric material parameters and characterize the influence and changes these parameters on the properties of knock sensors. The purpose of the research is to fault diagnosis of active piezoelectric element for self-diagnostics of sensor in normal engine operation, because online health monitoring of knock sensors can prevent engine damage. Temperature changes significantly affect the material properties of the active element from PZT ceramics. Temperature deviations are compared on the impedance and phase characteristics in the working temperature range of engine and also related to different types of sensor damage. Depending on the material defects (cracks, fissures, fractures) and changes in the material coefficients related to the frequency characteristic can assess the degree of damage sensors and the prediction quality piezoelement inside the sensor. The experimental comparison results are conducted and are shown. A series of experiments were conducted on a knock sensor, where was changed piezoelectric elements with different number of cracks. The experiments demonstrate that the proposed experimental methods can be used for mentioned purpose and eliminate damage the engine by vibrations.",
  address="Massey University",
  booktitle="Proceedings of the 2013 Seventh International Conference on Sensing Technology",
  chapter="101915",
  edition="1",
  howpublished="electronic, physical medium",
  institution="Massey University",
  year="2013",
  month="december",
  pages="874--879",
  publisher="Massey University",
  type="conference paper"
}