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IEC 60404-17:2021

Magnetic materials - Part 17: Methods of measurement of the magnetostriction characteristics of grain-oriented electrical steel strip and sheet by means of a single sheet tester and an optical sensor

General information
Valid from 04.11.2021
Directives or regulations
None
Standard history
Status
Date
Type
Name
04.11.2021
Main
IEC 60404-17:2021 is applicable to grain-oriented electrical steel strip and sheet specified in IEC 60404-8-7 for the measurement of magnetostriction characteristics under an applied AC magnetic field at 50 Hz or 60 Hz. This document defines the general principles and technical details of the measurement of magnetostriction characteristics of grain-oriented electrical steel strip and sheet by means of a single sheet tester and an optical sensor. This document is applicable to the measurement of: - the butterfly loop; - the peak-to-peak value λp-p; - the zero-to-peak value λ0-p. The magnetostriction characteristics are determined for a sinusoidal induced secondary voltage, for a specified peak value of the magnetic polarization and at a specified magnetizing frequency.
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