2015
DOI: 10.15199/48.2015.04.12
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Measurements of impulse magnetic fields

Abstract: The measurements of impulse magnetic fields using different methods were investigated. The main goal was the comparison of methods for measuring a strong magnetic fields. Method based on a Hall sensor was compared with the method using the measuring coil. In addition, the comparison of analog and numerical integration of the back electromotive force e(t) is presented. The paper shows waveforms of magnetic flux density and current recorded under investigation. The paper presents measurements of the magnetic ind… Show more

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“…The impulse magnetizer with capacitors charged to 3200 V creates in the magnetizing fixture an impulse current with a maximum I m = 1200 A ( Figure 6 b). This current produces an impulse of magnetic flux density in the middle of the magnetizing fixture equal to B m = 2.28 T ( Figure 6 a), measured by a fluxmeter with a THS 119 Hall sensor (Toshiba, Tokyo, Japan), with a supply circuit [ 25 ]. The curves in Figure 6 show that the magnetic induction increases more slowly than the current and decreases for longer than the current.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…The impulse magnetizer with capacitors charged to 3200 V creates in the magnetizing fixture an impulse current with a maximum I m = 1200 A ( Figure 6 b). This current produces an impulse of magnetic flux density in the middle of the magnetizing fixture equal to B m = 2.28 T ( Figure 6 a), measured by a fluxmeter with a THS 119 Hall sensor (Toshiba, Tokyo, Japan), with a supply circuit [ 25 ]. The curves in Figure 6 show that the magnetic induction increases more slowly than the current and decreases for longer than the current.…”
Section: Resultsmentioning
confidence: 99%
“… Measurements of ( a ) magnetic flux density in the middle of magnetization coil and ( b ) current, for U c = 3200 V magnetization voltage as a function of time [ 25 ]. …”
Section: Figurementioning
confidence: 99%