The de facto standard for R&D in soft magnetics.
Iwatsu’s B-H Analyzers, employing the CROSS-POWER method (IEC 62044-3), offer unparalleled precision in core loss measurement. By minimizing phase error across the frequency spectrum and compensating for both amplitude and phase in the detection circuitry, these instruments ensure high fidelity in data acquisition. Since their debut in 1984, the analyzers have evolved into a third-generation lineup supporting cutting-edge power electronics research.
■ 10Hz to 10MHz
■ 10Hz to 1MHz
■ 10MHz to 30MHz (SY-8264)
■ 10Hz to 1MHz (SY-8262)
Users can input key sample parameters (e.g., effective magnetic length, cross-sectional area, number of turns) and test conditions (e.g., frequency, peak field strength Hm, flux density Bm, voltage V2m, current I1m). The analyzer then automatically generates accurate B-H hysteresis curves and calculates the corresponding magnetic properties.
The SY-810 Remote Control Software supports seamless operation of various optional test systems
As frequencies increase in applications like switching power supplies and DC-DC converters, core losses—primarily due to hysteresis and eddy currents—become critical. These losses lead to temperature rise and hinder miniaturization. Measuring and minimizing core loss in soft magnetic materials is key to developing more efficient, compact designs.
Understanding magnetic saturation is essential when designing with soft magnetic materials. The B-H Analyzer delivers accurate B-H curves across a wide frequency range—including into the MHz domain—making it the only tool capable of capturing saturation behavior under real-world conditions.
Materials such as silicon steel, soft iron, permalloy, and stainless steel vary significantly in magnetic performance based on manufacturing and heat treatment. The B-H Analyzer provides a reliable method for characterizing permeability and inductance, facilitating data-driven material improvements—even in common ferrite cores.
