For test and evaluate magneticcharacteristic of electric steels correctly, methods specified in national standard should be adopted to determine the density of electric steels.
为了正确测试和评价电工钢的磁特性，应统一按照国家标准规定的方法确定电工钢的密度值。
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Steady state harmonic current is calculated based on the magneticcharacteristic curve of welding transformer. The results show that 3rd harmonic component is the main composition.
The influence of fillers in epoxy adhesives with different magneticcharacteristic is investigated through exposure the single lap joints to magnetic field using the device made by authors ourselves.