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ASTM A772/A772M

Standard Test Method for AC Magnetic Permeability of Materials Using Sinusoidal Current

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Organization: ASTM
Publication Date: 10 October 2000
Status: inactive
Page Count: 4
ICS Code (Magnetic materials): 29.030
scope:

1. Scope

1.1 This test method provides a means for determination of the impedance permeability (μz) of ferromagnetic materials under the condition of sinusoidal current (sinusoidal H) excitation. Test specimens in the form of laminated toroidal cores, tape-wound toroidal cores, and link-type laminated cores having uniform cross sections and closed flux paths (no air gaps) are used. The method is intended as a means for determining the magnetic performance of ferromagnetic strip having a thickness less than or equal to 0.025 in. [0.635 mm].

1.2 This test method shall be used in conjunction with those applicable paragraphs in Practice A 34/A 34M.

1.3 The values and equations stated in customary (cgs-emu and inch-pound) or SI units are to be regarded separately as standard. Within this standard, SI units are shown in brackets except for the sections concerning calculations where there are separate sections for the respective unit systems. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with this standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Document History

October 10, 2000
Standard Test Method for AC Magnetic Permeability of Materials Using Sinusoidal Current
This test method provides a means for determination of the impedance permeability (μz) of ferromagnetic materials under the condition of sinusoidal current (sinusoidal H) excitation. Test specimens...
October 10, 2000
Standard Test Method for AC Magnetic Permeability of Materials Using Sinusoidal Current
This test method provides a means for determination of the impedance permeability (µ(z)) of ferromagnetic materials under the condition of sinusoidal current (sinusoidal H) excitation. Test specimens...
ASTM A772/A772M
October 10, 2000
Standard Test Method for AC Magnetic Permeability of Materials Using Sinusoidal Current
1. Scope 1.1 This test method provides a means for determination of the impedance permeability (μz) of ferromagnetic materials under the condition of sinusoidal current (sinusoidal H) excitation....
October 10, 2000
Standard Test Method for AC Magnetic Permeability of Materials Using Sinusoidal Current
This test method provides a means for determination of the impedance permeability (μz) of ferromagnetic materials under the condition of sinusoidal current (sinusoidal H) excitation. Test specimens...
October 10, 2000
Standard Test Method for AC Magnetic Permeability of Materials Using Sinusoidal Current
This test method provides a means for determination of the impedance permeability (μz) of ferromagnetic materials under the condition of sinusoidal current (sinusoidal H) excitation. Test specimens...
February 15, 1995
Standard Test Method for ac Magnetic Permeability of Materials Using Sine Current
1. Scope 1.1 This test method provides for sine-current tests for impedance permeability (µz) of ferromagnetic materials in the form of laminated toroidal cores, tape-wound toroidal cores, and...
June 30, 1989
STANDARD TEST METHOD FOR A-C MAGNETIC PERMEABILITY OF MATERIALS USING SINE CURRENT
A description is not available for this item.
November 6, 1980
STANDARD TEST METHOD FOR A-C MAGNETIC PERMEABILITY OF MATERIALS USING SINE CURRENT (R 1985)
A description is not available for this item.

References

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