KOERZIMAT 1.097 HCJ/J-H
System for measuring coercive field strength HCJ, J(H) hysteresis and relative permeability µr(H)
Material evaluation based on magnetic properties. The KOERZIMAT 1.097 HCJ is a PC-controlled measuring system for fast and precise determination of the coercive field strength HCJ of hard and soft magnetic materials. Measurement is performed in an open magnetic circuit in accordance with IEC 60404-7 and is largely independent of the sample geometry. This allows even complex-shaped components to be tested without extensive sample preparation while covering the entire magnetizable volume.
For measurement, the sample is magnetized inside the magnetically shielded KOERZIMAT coil. Förster probes measure the magnetic polarization while a counteracting magnetic field is applied. The field strength at which the polarization J reaches zero corresponds to the coercive field strength HCJ. Magnetic shielding reduces the influence of the Earth's magnetic field and other magnetic interference.
Typical applications include testing hard metals in accordance with ASTM B887, monitoring carbon balance, sintering degree and grain size, as well as quality control of metal powders. Changes in magnetic properties caused by annealing, machining, stamping, pressing or forming can also be reliably monitored.
With the J-H measurement extension package, the complete J-H hysteresis loop including the initial magnetization curve of soft magnetic steels can also be determined.
Product highlights
Technical information
| HCJ measuring range: | 0 – 100 kA/m |
| Relative permeability µr(H): | 100 – 2500 (J-H measurement) |
| Magnetizing field strength: | up to 200 kA/m |
| Pulse magnetization: | up to 450 kA/m, optional (depending on coil type) |
| Maximum measuring field strength: |
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| HCJ measurement time: | 3 s |
| Magnetization time: | 0.2 – 40 s, adjustable |
| HCJ measurement uncertainty: | < ±1% of measured value in accordance with IEC 60404-7 |
| Measuring field uncertainty: | ±0.2% of measured value |
| Coil inner diameter: |
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| Homogeneous field range: |
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| Coil dimensions (L × W × H): | 550 × 340 × 420 mm |
| Measuring element: | Förster probes (fluxgate) |
| Measuring module dimensions (L × W × H): | 465 × 445 × 220 mm |
| Measuring module weight: | approx. 18 kg |
| Degree of protection: | IP32 |
| Ambient temperature: | 0 to +40 °C |
| Power supply: | 230 V, 50/60 Hz |
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Application notes
Measurement of coercive field strength in the development of special magnetically soft alloys
Small deviations in coercivity can reduce efficiency and increase losses. KOERZIMAT measures HcJ precisely, regardless of specimen geometry.
Incoming Material Inspection for Reed Switch Production
Coercivity deviations can impair reed switch performance. KOERZIMAT precisely verifies incoming material to ensure reliable switching behavior.
Production Process Monitoring for Components of Electromagnetic Actuators
Forming processes can change the magnetic properties of soft magnetic materials. KOERZIMAT reliably monitors coercivity throughout production.
Assessment of Carbide Grain Size on Small Hard Metal Specimens
Incorrect carbide grain sizes in hard metal specimens can reduce tool life and performance. Coercivity measurement quickly and reliably determines the grain size.