Aufbau eines Messplatzes zur elektromechanischen Prüfung von Piezo-Aktoren

Translated title of the contribution: Set up of an electromechanical test site for piezo-actuators

Martin Fuhs

Research output: ThesisDiploma Thesis

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Abstract

In the last few years ceramic multilayer actuators are being used to control fuel injection in the automotive industry. The key material of this high performance application is lead zirconate titanate, which shows due to its ferroelectrical and ferroelastical properties a non-linear, piezoelectric behaviour (e.g. hysteresis). Effective properties of these devices depend on temperature, mechanical and electrical loading and therefore they have to be determined at all relevant operating points. At the Institut für Struktur- und Funktionskeramik/Montanuniversität Leoben an electromechanical test site was set up by the combination of a universal testing machine with a Sawyer-Tower-circuit. In this thesis a voltage regulation is developed in order to enable experiments assuring a certain electrical loading of the device. The set up is driven by a newly written program using the programming language LabVIEW provided by NATIONAL INSTRUMENTS. In the course of this project the test site is upgraded via an increased equivalent capacity situated in the Sawyer-Tower-circuit. The verification of this new developed measurement method was carried out on several commercial devices.
Translated title of the contributionSet up of an electromechanical test site for piezo-actuators
Original languageGerman
QualificationDipl.-Ing.
Supervisors/Advisors
  • Supancic, Peter Hans, Supervisor (internal)
  • Danzer, Robert, Co-Supervisor (internal)
Award date16 Dec 2011
Publication statusPublished - 2011

Bibliographical note

embargoed until null

Keywords

  • piezo-actuator
  • voltage regulation
  • Sawyer-Tower-circuit
  • test site
  • electromechanical testing

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