Voestalpine Stahl Gmbh

Norbert Gstöttenbauer

Bernhard Jakoby

Wolfgang Hilber

Johannes Sell

Herbert Enser

Stefan Schuster

Leopold Stegfellner

Gunter Lengauer

Stefan Scheiblhofer

Daniel Wöckinger

Christoph Thaler

Gerald Ossberger

Thomas Pfatschbacher

Karsten Lothar Feiste

Christopher Harris

Anna Sonja Griesser

Joachim Mauhart

Wolfgang Amrhein

Erfried Gangl

Anton Pichler

Christoph Feilmayr

Schuster Stefan

An apparatus and method for the non-destructive determination of the content of the magnetizable and/or non-magnetizable portion of a sample, in which the sample is provided in an air gap of a magnetically conductive yoke, an alternating magnetic field is generated by an alternating magnetic field strength of an excitation coil in the yoke, and first measurement data relating to the sample are collected using a measuring device which is inductively coupled to the yoke, and comparing the first measurement data to second measurement data relating to a reference sample, wherein the same alternating magnetic field strength or the same alternating magnetic field is applied to both the reference sample and the sample and the difference between the two collected sets of measurement data is included as a measure in the determination of the content for the magnetizable and/or non-magnetizable content portion of the sample.

Apparatus and method for the non-destructive determination of the content of the magnetizable and/or non-magnetizable portion of a sample

A strain gauge and a metal strip having such a strain gauge, which has a first measuring grid, a second measuring grid, and a substrate on which these two measuring grids are positioned in a common plane. In order to enable achievement of an inexpensive strain gauge whose measurement results can be robustly compensated for in relation to a temperature disturbance variable, it is proposed that the multi-layer substrate have a metallic layer and an electrically insulating layer onto which electrically insulating layer these two measuring grids consisting of a piezoresistive material are printed.

Strain gauge and metal strip having a strain gauge of this kind

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Engerwitzdorf, Austria

Norbert Gstöttenbauer