Toroidal variometer for a magnetic particle imaging device

机译：磁性粒子成像设备的环形变差仪

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In order to gain a supremely pure high-power signal, it is necessary to use high attenuation frequency filters. For this purpose, oscillating circuits can be used. The reactive elements in each oscillating circuit have to be adjusted very precisely to each other and to the resonant frequency as well. Additionally, it has to be taken care of scattering fields and signal distortion. The presented device is an air core coil with variable inductance and low scattering fields. It does not contain any ferromagnetic material to avoid the generation of higher harmonics within the filter.

机译：为了获得超纯的高功率信号，必须使用高衰减频率滤波器。为此，可以使用振荡电路。每个振荡电路中的电抗元件必须彼此非常精确地调整，并且也必须非常精确地调整。另外，必须注意散射场和信号失真。提出的设备是具有可变电感和低散射场的空心线圈。它不含任何铁磁材料，可避免在滤波器内产生更高的谐波。

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《International Workshop on Magnetic Particle Imaging》|2015年|1-1|共1页
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Stelzner Jan; Bringout Gael; Graeser Matthias; Buzug Thorsten M.;
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Toroidal variometer for a magnetic particle imaging device

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