User`s manual

7800 Series Hysteresisgraph System User's Manual
Operation 4-7
Calibration Setup (Continued)
Calibration Reference Standard ID An informational field, used to store identification information on the
B induction reference standard – often a high purity Nickel standard.
Calibration Reference Induction The value of Intrinsic Induction or Magnetic Polarization (B-H or J)
which corresponds to the flux density obtained from the induction reference
standard (usually high purity Nickel) when magnetized to the applied field,
Happ. This value is used to calibrate the b coil.
@Applied Field, H (Oe) Happ, or the value of applied field, H, which will be applied to magnetize
the induction reference standard (usually high purity Nickel) in order to
calibrate the B Coil.
Temperature @ Above Induction Temperature during which the calibration reference induction was
measured.
Temperature Coefficient of Reference Standard Rate of change of induction with respect to change in
temperature for the calibration reference standard.
Calibration Reference Standard Dimensions Dimensions of the calibration reference standard must be
entered. Please select a cross section type, and then enter the appropriate
values. Note, the entry boxes with change depending on the geometry
chosen. If the calibration reference standard does not conform to a
rectangular of circular cross-section, the cross-section may be determined
by other means and entered directly into the system by selecting the
‘Complex Shape/Manual C-S Calculation’ option. Note, these values
directly affect the calibration of the system. A 1% error in the determination
of these values will lead to a 1% error in the measurement of B.
Outside Diameter For circular cross-sections, enter the diameter of the exterior of the sample.
Inside Diameter For washer-shaped cross-sections (circular with a hole through the center,
enter the diameter of hole.
Magnetic Length Enter the size of the magnetic length direction (preferred direction or
direction in which flux flows through the calibration reference standard).