Multi-Function Kappabridges
Magnetic Susceptibility/Anisotropy Systems
Manufactured in the Czech Republic by AGICO s.r.o.
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Multi-Function KappabridgesMagnetic Susceptibility/Anisotropy Systems |
The world's most sensitive commercially available laboratory instruments for measurement of:
4 Available Models
| MFK1-FA | Spinner, with 3 operating frequencies |
| MFK1-FB | Static, with 3 operating frequencies |
| MFK1-A | Spinner, with single operating frequency |
| MFK1-B | Static, with single operating frequency |
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Main Features
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MFK1 Kappabridges consist of the pick-up unit and control unit connected to a PC computer.
In principle the instruments represent a super-precise, fully automated inductive bridges. They are equipped with automatic zeroing system (in both real and imaginary components) and automatic compensation of the thermal drift of the bridge unbalance as well as automatic switching to appropriate measuring range.
The measuring coil is designed as a compensated solenoid with an outstanding field homogeneity.
Both models measure the AMS of a slowly spinning specimen. One has to adjust the specimen only in the three perpendicular positions. The measurement it rapid (about 2 minutes per specimen) and precise, profiting from many susceptibility determinations in each plane perpendicular to the axis of specimen rotation. The bridge is zeroed prior to the anisotropy measurement after inserting the specimen into the measuring coil, thus the most sensitive range can be used. Special software combines the measurements in three perpendicular planes plus one bulk value to create a complete susceptibility tensor. The errors in determination of this tensor are estimated using a special method based on multivariate statistics principle.
The instruments can also do fully automated measurement of the field variation of both the in-phase bulk/mass susceptibility and relative changes of phase angle. The measurements are made in 20, 15, and 10 distinct fields, respectively. It is possible to perform short runs of this measurement using a reduced number of distinct fields. In addition, user configuration of measuring fields is also available.
MFK1-FB and MFK1-B Kappabridges
Static only versions
Laboratories under budgetary constraints may prefer the lower priced static only models. For the AMS determination, the specimen susceptibility is measured in 15 different positions following rotatable design. The positions are changed manually and, by using the included special software, the susceptibility tensor is calculated including the statistical errors of its determination.
These models can be upgraded to fully-functional spinner instruments at a later time.
SPECIMEN SIZES
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For Spinner Operation |
For Static Operation |
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| Sensitivity (in 400 A/m field): | 3 x 10-8 SI (bulk); 2 x 10-8 SI (aniso) |
| Operating Frequency: | MFK1-FA & FB 976 Hz, 3904 Hz,
15616 Hz MFK1-A & B 976 Hz |
| Specimen spinning frequency: | 0.5 Hz |
| Field Intensity Ranges (peak values): | 2 - 700 A/m @ 976 Hz 2 - 180 A/m @ 3804 Hz 2 - 110 A/m @ 15616 Hz |
| Field Homogeneity: | 0.2% |
| Measuring Range (Automatic): | up to 0.5 (SI) |
| Accuracy within one range: | +/-0.1% |
| Absolute accuracy calibration: | +/-3% |
| Pick-up coil inner diameter: | 43 mm |
| Power: | 100-240 V; 50/60 Hz, 40VA |
| Operating temperature range: | +15 to +35 deg. C |
| Relative humidity: | up to 80% |
| Measuring Unit Dimensions: | 260 x 160 x 250 mm; 4 kg |
| Pick-up Unit Dimensions: | 240 x 320 x 330 mm; 11 kg |
Please contact John Toth at jtoth@ascscientific.com for additional information or a price quotation.
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ASC Scientific
2075 Corte del Nogal, Suite T, Carlsbad, CA USA 92011 - Tel. (800) 272-4327 - Fax. (760) 431-0904
