MAGNETIC MATERIALS - PART 4: METHODS OF MEASUREMENT OF D.C. MAGNETIC PROPERTIES OF MAGNETICALLY SOFT MATERIALS
International Electrotechnical Committee
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
Describes the methods of measuring the d.c. magnetic properties of magnetically soft materials in a closed magnetic circuit using either the ring or the permeameter methods.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 68 |
