Progress in Superconductivity
- 제3권2호
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- Pages.151-158
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- 2002
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- 1229-4764(pISSN)
A Low-noise Double Relaxation Oscillation SQUID Magnetometer for Measuring Magnetoencephalogram
초록
We developed a useful SQUID magnetometer for biomagnetic applications, magnetoencepha-logram(MEG) and magnetocardiogram(MCG), etc. The SQUIDs are based on Double Relaxation Oscillation SQUID(DROS). DROS consists of two SQUIDs(signal SQUID and reference SQUID) in series, and a relaxation circuit of an inductor and a resistor. Specially we used single reference junction instead of the reference SQUID. The SQUIDs are based on hysteretic