Multi-loop relaxation oscillation SQUID magnetometers with large flux-to-voltage transfer functions
作者： J. Kawai , G. Uehara , M. Higuchi , H. Ogata , H. Kado
DOI: 10.1109/77.919576
关键词:
摘要: A multi-loop Relaxation Oscillation SQUID (ROS) with direct voltage readout is fabricated and characterized. We designed four-loop ROSs the size of 5 mm /spl times/5 mm. maximum modulation 100 mu/V a flux-to-voltage transfer function more than 10 mV//spl Phi//sub 0/ were obtained. With flux locked loop (FLL), magnetic field resolution 4 to fT//spl radic/Hz was obtained in frequency range from 0.3 Hz up white region. Using this magnetometer, we demonstrated measurement brain response.
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sci-hub.se 参考文章(7)
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