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Comparing the Measurement Methods for Testing the Piezoelectric Ring Element in a Knock Sensor

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F23%3APU148618" target="_blank" >RIV/00216305:26220/23:PU148618 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Comparing the Measurement Methods for Testing the Piezoelectric Ring Element in a Knock Sensor

  • Original language description

    The paper presents experimental research of the ring PZT ceramics that are used as the active element in knock sensors. The aim is to compare selected methods for determining the material coefficients, the pie-zoelectric charge coefficient d33 of an active toroidal PZT element in particular. In the research, we measured the material coefficients of an active ring PZT element to test some of the property detection approaches. Before being employed, each such ring element has to be checked in terms of its overall quality and functionality. The relevant procedure comprises several predefined stages, in-cluding verification of the geometry and material properties. In this context, the resonant frequency is measured to enable calculation of the effective electromechanical coefficient; the concrete values of the frequency and the coefficient enable us to partially assess the actual quality of the sample. This tech-nique, referred to as the frequency method, nevertheless cannot be used to determine the piezoelectric charge coefficient (d33) in the rings; for such a purpose, one of the direct charge determination techniques is regularly utilized. Advantageously, integrating both approaches generally allows us to characterize the applied piezoelement in a comprehensive manner, i.e., from the perspective of the resonant frequency stability in a ring and in terms of verifying the piezomaterial’s pa-rameters and polarization. The experiment relied on a set of Sonox P502-based rings by CeramTec. In these samples, we tested the resonant frequency stability via an Agilent 4294a impedance analyzer. Subsequently, we measured the rings with a d33 meter to determine the value of the charge on the electrodes that corre-sponds to the force applied to the sample. The entire experiment yields a comprehensive description of the involved methods for evaluating and verifying the quality and applicability of piezoelectric rings be-fore their use in knock sensors.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    20504 - Ceramics

Result continuities

  • Project

  • Continuities

    S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2023

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    Proceedings of the 29th International Congress on Sound and Vibration

  • ISBN

    978-80-11-03423-8

  • ISSN

  • e-ISSN

  • Number of pages

    8

  • Pages from-to

    1-8

  • Publisher name

    IIAV CZECH s.r.o.

  • Place of publication

    Praha

  • Event location

    Praha

  • Event date

    Jul 9, 2023

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article