LABORATORIO ELETTROFISICO AMH-SERIES - SOFT MAGNETIC MATERIALS PERMEAMETERS Characterize rings and strips at high resolution in DC and AC The AMH-series Permeameters are automatic measuring systems to characterize rings and strips in DC and AC conditions. Laboratorio Elettrofisico manufactures a complete line of combination permeameters for soft magnetic materials for DC up to 1 MHz. DC measurement provides analysis for the intrinsic and static properties. The AC measurement offers analysis for the behavior of the materials under dynamic conditions. Dynamic properties are affected by many factors depending on the particular application conditions. Laboratorio Elettrofisico AC permeameter provides the designer with realistic characteristics of power losses, saturation field and induction performance relating to thickness of the material and the electrical resistivity. • Remanence Br, coercivity Hc, saturation values Hsat, Bsat, Jsat, cycle area, relative permeability, losses, losses separation, etc. • All DC/AC AMH-series meet the International Standards IEC 60404-4, IEC 60404-2, IEC 60404-6 and ASTM A773 • Automatic measurement of complete DC or AC hysteresis loop, normal magnetization curve, permeability curve • The measuring cycle is fully automatic and is controlled by Laboratorio Elettrofisico exclusive software (Ne-1.0), resulting in complete characterization of the material under test. STANDARD CONFIGURATION The main cabinet containing: • Fluxmeter • Arbitrary Function Generator • Power amplifier • Fast Acquisition Unit • Reference sample for day-to-day control • Dedicated software Ne-1.0 • PC and printer • Connection tool for ring sample

The Laboratorio Elettrofisico AMH Series offers a wide range of permeameter models for AC/DC measurement for soft magnetic ring or strips. Listed below in the chart are the various models that describe the performance range. GENERAL Frequency range Max power Measurable materials Measurable quantities Measurable shapes Sample size Ring Sample size Strip (Epstein) Typical accuracy Ring Typical accuracy Strip Test time Operating T range AMH-1K-S AMH-200-K-S AMH-50K-S AMH-1M-S DC - 1.2 kHz DC - 200 kHz DC - 50 kHz DC - 1 MHz Soft Magnetic Materials Bsat, Jsat, Hsat, Br, Hc, cycle...

MODEL DIMENSIONS HOW IT WORKS The sample has to be prepared winding a primary set of turns NH (Drive) around the sample for excitation and a secondary set of turns NB (Sense) to detect the magnetic flux. The H(t) field is determined measuring the current i(t) in the primary winding: H(t)= NH• i(t)/ℓ, where ℓ is the magnetic path. The current is measured by measuring the voltage across a low-inductance resistance R (shunt). For DC measurements, B is measured through the flux Ф by use of a fluxmeter, while for AC measurements, the B(t) field is determined by integrating the voltage V(t) from the secondary...

EF-LF-0.4K Epstein Frame Test Set - Low frequencies The EF-LF Epstein Frame Test Set is a 25 cm Epstein Frame designed for the magnetic characterization of electrical steel strip in accordance with IEC 60404-2, ASTM A343 and A348 test methods. When used in conjunction with one AMH-series, power losses and magnetizing characteristics at commercial frequencies can be measured by the means of a stack of rectangular test specimens. EF-MF-10K Epstein Frame Test Set - Medium frequencies The EF-MF Epstein Frame is a 25 cm Epstein Frame designed for the magnetic characterization of electrical steel strip...

Module for improved sensitivity In order to increase the resolution at low field (few A/m) is available a module for improved sensitivity. RC-50-60-5-LF/HF Ring-coil Ring coils (RC) are used to measure ring specimens without the necessity to wind turns on them. A ring coil consists basically of an open multipolar connector, in which its pins are connected to give Nh excitation turns and NB measuring turns when closed. Ring coils are usually tailored on specific sizes, materials, frequencies, levels, since different measuring conditions require different NH and NB values. Most of the ring coils...

AMH-SERIES SOFTWARE Our proprietary Ne-1.0 software automatically manages measurements for the AMH-series, including comparison of different curves and statistical analysis. The software helps ensure the measuring process is accurate and absolute and helps prevent improper setting of the sample’s parameters. The Automatic Assistant notifies the operator and makes suggestion for the appropriate procedures or settings. The software also provides automatic creation for printing reports, database search feature and curve comparison. Main panel with example of measurement (at 50 Hz) Measured points...

Type of measurement • Hysteresis loop, normal magnetization curve and relative permeability, in DC and AC conditions • Sinusoidal B and H condition • Demagnetization of the sample Results • Hsat, Bsat, Jsat, Br, Hc, loop area, relative permeability, specific power losses, losses separation, Steinmetz coefficient and many advanced results • Magnetic units in SI and CGS, measures in mm and inches, temperature in °C and °F Setting of measuring parameters • Manual or automatic settings of magnetizing and demagnetizing field, speed, resolutions and many other parameters • Setting of acceptance limit...

Personalized training Count on our team of experts for personal training during the acceptance period at Laboratorio Elettrofisico. After delivery, additional training may be arranged at your facility. We'll be happy to create a custom training plan to fit your needs. Real-time help The LE Assistant monitors your system in real time and provides suggestions and error messages to improve performance. The LE Assistant is automatically activated if messages or warnings exceed a certain level. Seamless support With LE, you're only one button away from expert help. Access support online through TeamViewer...