Measurement of feebly magnetic materials - PFMM Permeameter
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LABORATORIO ELETTROFISICO PFMM | PERMEAMETER FEEBLY MAGNETIC MATERIALS Precision measurement of feebly magnetic materials The model PFMM (Permeameter for Feebly Magnetic Materials) is an instrument to verify that a nonmagnetic material (for example austenitic stainless steel) is really “non-magnetic”. The permeameter PFMM quantifies the magnetic “weakness” of the material by measuring its magnetization curve, relative permeability μr and susceptibility χ. When a non-magnetic material is used in an application where the interaction with magnetic fields must be very low, the control of its magnetization and permeability is fundamental. The permeameter PFMM measures the relative permeability in the range between 1.001 and 4, with a typical total accuracy less than ±2%. When low values of permeability and susceptibility are required, the Laboratorio Elettrofisico PFMM is necessary tool. The sensitivity of the coil must be very high: for example, the PFMM can accurately measure the susceptibility of good stainless up to 108 times lower than the susceptibility of a typical Fe-Ni, that can be measured with a permeameter for ferromagnetic materials. Measurements are taken in compliance with ASTM 342 and IEC 60404-15 standards. STANDARD CONFIGURATION • Cabinet with fluxmeter and DC power supply • Solenoid with positioning tool for samples • Compensated measuring coil

Principles of operation The Laboratorio Elettrofisico PFMM is based on the measurement of the magnetic polarization J of the material under an increasing external field H. The ratio between J and H provides the susceptibility χ and relative permeability μr = 1 + χ. The accurate measurement of J it is critical: for example, for a material with μr = 1.001, applying a field H of 10000 gauss, the polarization J will be 10 gauss only! An extremely accurate compensation coil facilitates and performs automatically this measurement. The sample must be in the shape of a bar with a uniform cross-section...

TECHNICAL SPECS

The software Rn-1.0 is an integrated element of the permeameter PFMM and manages the system and creates a user friendly interface between machine and user. It allows the setting of the measurement parameters and the view of the results at the end of the measurement. The main features of this software are shown below. The exclusive Laboratorio Elettrofisico Rn-1.0 software automatically controls the measurement process. Once the operator inputs the parameter settings, accurate measurements are made in less than 30 seconds: the PFMM displays the J vs. H curve and the permeability. The other...

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...

LABORATORIO ELETTROFISICO CUSTOM MAGNETIZING FIXTURES HIGH EFFICIENCY MAGNETIZERS WORKSTATIONS AND AUTOMATION SYSTEMS EFFICIENCY MAGNETIZERS AND PRECISION MEASURING EQUIPMENT FOR ALL MAGNETIC MATERIALS EUROPE | ITALY (HQ) Via G. Ferrari 14 Nerviano, MI 20014 +39 0331 589785 USA | MICHIGAN 40 Englewood Drive, Suite H Lake Orion, MI 48359 +1 248 340 7040 CHINA | SHANGHAI No. 8 Wuzhong Road, Room 1202 Xuhui District, 200336 +86 21 5401 9806 USA | CALIFORNIA 370 Kishimura Drive Gilroy, CA 95020 +1 408 842 2336 Founded in 1959, Laboratorio Elettrofisico is a global company specializing in...