BS EN 60404-4 : 1997
Current
The latest, up-to-date edition.
MAGNETIC MATERIALS - PART 4: METHODS OF MEASUREMENT OF D.C. MAGNETIC PROPERTIES OF MAGNETICALLY SOFT MATERIALS
Hardcopy , PDF
English
01-01-1997
Foreword
1 Scope and object
2 Normative references
3 Determination of the magnetic characteristics by
the ring method
3.1 Object
3.2 General
3.3 Effect of temperature on the measurements
3.4 Test specimen
3.5 Windings
3.6 Methods of measurement by the ring method
3.6.1 Magnetic field strength
3.6.2 Magnetic flux density
3.6.3 Connection of apparatus
3.6.4 Determination of normal magnetization
curve
3.6.5 Determination of a complete hysteresis
loop
3.6.6 Determination of remanent flux density
3.6.7 Determination of coercive field strength
3.7 Uncertainty by the ring method
4 Determination of the magnetic characteristics by the
permeameter method
4.1 Object
4.2 Principle of the permeameter
4.3 Test specimen
4.4 Methods of measurement by the permeameter
method
4.4.1 Measurement of magnetic field strength
4.4.2 Measurement of magnetic flux density
4.4.3 Connection of apparatus
4.4.4 Determination of the normal magnetization
curve
4.4.5 Determination of a complete hysteresis
loop
4.4.6 Determination of remanent flux density
4.4.7 Determination of coercive field strength
4.5 Uncertainty by the permeameter method
5 Test report
Annex A (normative) - Calibration of search coils
Annex B (informative) - Methods of calibrating the flux
integrator
Annex C (informative) - Requirements for the J-compensated
coil system
Annex ZA (normative) - Normative references to international
publications with their corresponding European
publications
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