Abstract The vibration test of silicon steel, amorphous and nanocrystalline magnetic rings shows that the magnetostriction of amorphous materials is much larger than that of silicon steel and nanocrystalline. This paper focuses on the measurement and analysis of the vibration and noise of a 5kVA/4.5 kHz amorphous high-frequency transformer (HFT) under sinusoidal and non-sinusoidal excitation. Comparing and analyzing the measured data of vibration and noise, the results show that the vibration of HFT under the non-sinusoidal excitation is much larger than that of the sinusoidal excitation. The vibration excited by sinusoidal excitation basically concentrates on the double frequency of the excitation. Most of the vibration under non-sinusoidal excitation is also on the double frequency, but contains many harmonics. The influences are analyzed of duty cycle of rectangular excitation and the natural frequency of HFT on the vibration and noise.

中文翻译：

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正弦和非正弦电压激励下高频非晶变压器的振动噪声特性

摘要 硅钢、非晶和纳米晶磁环的振动试验表明，非晶材料的磁致伸缩远大于硅钢和纳米晶。本文重点对一台5kVA/4.5 kHz非晶高频变压器(HFT)在正弦和非正弦激励下的振动和噪声进行测量和分析。对比分析振动和噪声的测量数据，结果表明，非正弦激励下HFT的振动远大于正弦激励下的振动。由正弦激励激发的振动基本上集中在激励的两倍频率上。非正弦激励下的大部分振动也在双频上，但包含许多谐波。