FEATURES

  • Measures remanent hysteretic properties in arbitrary directions on thin film media
  • Auto mapping of ratio of remanent properties in circumferential and radial directions
  • Measures time dependence of remanent coercivity
  • Measurement principle same as that of RMM
  • Radial measurement range (O.R. - 1.5mm) to (I.R. + 2.5mm)
  • Hmax = 12 kOe
  • Maximum Hcr > 6 kOe; minimum MrT = 0.04 memu/cm^2
  • Absolute uncertainty in MrT = 0.05 memu/cm^2 or 5% (whichever is larger)
  • Absolute uncertainty in Hcr = 50 Oe or 5% (whichever is larger)
  • Vacuum chuck
  • No restrictions on disk size [27-130mm]
  • Same simple, adjustment-free operation as RMM©
  • 115 V, 50/60 Hz, 15 A; 90-100 p.s.i. compressed air
  • Unit On Casters, Totally Mobile

Spatial dependence of Mrt O.R. in 95mm disk

In the following figures each data point is represented by a pair of numbers (11) indicating that the data refers to the first measurement radius and the first measurement angle. Multiple measurement points can be programmed.

Mrt O.R. as a function of angle
for anisotropic disk

Hcr O.R. as a function of angle
for anisotropic disk

Mrt O.R. as a function of angle
for isotropic disk

Hcr O.R. as a function of angle
for isotropic disk

Time Dependence of Hcr

For further information contact:

Dr. Richard M. Josephs, President
Innovative Instrumentation Incorporated
rjosephs@innovinst.com

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ORM© 1998, Innovative Instrumentation Inc.