The automatic DC measuring system made for irregularly shaped samples
The CR-03 Coercimeter measures the coercivity for soft magnetic materials.
The CR-03 Coercimeter is a DC automatic measuring system to characterize samples having irregular shapes — in a fast and easy way. The CR-03 Coercimeter detects the stray field emitted from a magnetized sample with
a Hall probe in close proximity. By applying an increasing demagnetizing field with the solenoid coil,
the stray field is reduced to zero. The result, the demagnetizing field coincides with the coercivity of
the material. The coercimeter measurement is automatic and easy to use with the custom LE software
that comes standard. Soft materials measured include: iron and carbon steels, soft ferrites, amorphous
alloys, nano-crystalline alloys.
The working principle is based on the detection of the stray field
coming from the sample under test. A Hall probe, positioned near
the sample, measures the transverse component of this field. The
stray field reduces as the axial field of the solenoids demagnetizes
the sample. When the transverse field is zero, the axial field
coincides with the coercivity of the material.
The CR/03 measurement is automatic and very easy to use with
supplied custom software. The measurement meets International
Standard IEC 60404-7.
When Hc is lower than 40 A/m, it¡¯s required to shield the sample, to avoid influences
from external magnetic fields (also the Earth magnetic field can affect the results).
For this reason, a Mu-metal shield is provided to guarantee the reduction of external
influences to negligible levels, that permits accurate measurement of Hc lower than
few A/m.
Coercimeter¡¯s measuring
Coercimeter_CR_03_Á¦Ç°Ä«´Ù·Î±×.pdf
