Linear transformer magnetic cores
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In modern measurement filed, linear transformer are widely used especially known as Hall sensor. The advantages of Hall sensor are as follows: the output signal is good, a large range of testing. The drawbacks are high degree of distortion and low test frequency (usually less than 20khz). The error of nanocrystalline linear transformer is smaller than Hall current sensor. The usage frequency of linear transformer can be 100KHz which is 5 times than Hall sensor. Linear transformer has a considerable advantage in precision measurement system.