• ASTM A977/A977M-07(2013)

ASTM A977/A977M-07(2013)

Standard Test Method for Magnetic Properties of High-Coercivity Permanent Magnet Materials Using Hysteresigraphs

ASTM International, 05/01/2013

Publisher: ASTM

File Format: PDF

$33.00$67.00


Published:01/05/2013

Pages:12

File Size:1 file , 280 KB

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1.5 The names and symbols of magnetic quantities used in this test method, summarized in Table 1, are those generally accepted by the industry.

TABLE 1 Symbols, Quantities, and Units

Symbol

Quantity

SI Unit

Customary
cgs-emu

At

Cross section of search coil

[m²]

cm²

Bd

Magnetic induction at BHmax

[T]

G

Brec

Magnetic induction at low point of
 recoil loop

[T]

G

Br

Magnetic induction at remanence

[T]

G

dl

Diameter of pole piece

[m]

cm

d2

Diameter of homogeneous field

[m]

cm

Hd

Magnetic field strength at BHmax

[A/m]

Oe

Hp

Magnetic field strength at low point of
 recoil loop

[A/m]

Oe

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