Fully automatic and accurate high-frequency core loss measurement

Fact standard from research and development to production inspection for soft magnetic materials

High-Precision Core Loss Measurement

The Iwatsu BH Analyzer utilizes the CROSS-POWER method (as adopted in IEC62044-3), achieving high precision measurements through minimal phase error integration processing on the frequency spectrum, as well as compensation for the amplitude and phase characteristics of the current detection resistor and detection circuit.
Iwata'sThe BH Analyzer has undergone multiple model changes since its launch in 1984, with its accuracy and precision steadily improving, contributing to the further development of power electronics.

Features

Broadband measurement frequency from10Hz to 10MHz (SY-8218)

High-Power AmplifierIE-1125B, high voltage ±140V, high current ±5.2A, up to 3MHz

Meets automotive parts standardsAEC-Q200 Grade 0, automatic measurement of 4 additional samples' temperature characteristics (-55°C to +180°C) (SY-330)

Automatic measurement of up to41 sample temperature characteristics (-30°C to +150°C) (SY-321A)

Measurable lengthSamples of small single boards over 36mm (less than 35mm in width) - SY-956

StackableMeasure DC bias at 30A (SY-960/961/962)

Measure magnetic properties of various soft magnetic materials in different part shapes

Fully Automatic Measurement

Set the sample parameters (effective magnetic circuit length, effective cross-sectional area, number of turns, etc.) and measurement conditions (frequency, high magnetic field, high magnetic flux density, high induced voltage, high excitation current), along with various fully automatic measurement of magnetic parameters.

Fully automatic measurement with options

Thermally controlled scanners, small single-board magnetometers, and DC bias testers, among other accessories, can be controlled remotely with the software. The SY-810 operates with full automatic control.

To facilitate switch mode power supplies andDC-DC converters are becoming smaller and more efficient, with their switching frequencies increasing. As the frequency rises, transformers and inductors used in these devices typically have higher losses. The cause of these losses is the core material's core loss within these components, mainly categorized into hysteresis loss and eddy current loss. Sometimes, the heat generated by these losses can alter the magnetic properties of the core material itself, leading to severe damage. This can lead to serious issues. BH analyzers are measuring instruments that can measure core loss over a wide frequency range, from low frequencies in soft magnetic materials to MHz high frequencies.

BH Curve Measurement

Magnetic saturation is crucial for magnetic materials, depending on their specific applications. Magnetic saturation can be measured by assessingThe BH curve determines this. If the BH curve becomes saturated under the required operating conditions, it can no longer be expected to function as an inductor.
The BH Analyzer is a measuring instrument capable of high-precision measurement of a wide range of BH curves from low-frequency to MHz frequency range of soft magnetic materials under all conditions.

Permeability measurement

Core materials used in motors, actuators, and relays include silicon steel, soft iron, and permalloy. As is well-known, the magnetic properties of these materials can change due to processing and heat treatment.The BH Analyzer is a measuring instrument that can assess the magnetic properties of these parts (including permeability from low-frequency MHz ranges to high frequencies) and provides data on the effects of processing and heat treatment on the material.