A serial read-out scheme for SQUID systems.
A serial read-out scheme for multichannel SQUID systems is discussed, which can decrease the expense of electronic components needed for conventional multichannel systems. In case of RF SQUID systems, this scheme allows the use of only one transmission line between all SQUIDs and the room temperature electronics, thus decreasing helium losses caused by heat transport through electrical wires. Additionally, part of the read-out electronics can be shared by all channels. The noise properties as well as the influence of multiplex frequency on the stability of the flux-locked loop and on slew rate are studied in some detail.
Mück
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Institute of Thin Film and Ion Technology, Research Centre Jülich GmbH, Federal Republic of Germany.
D004867:Equipment Design; D006801:Humans; D008280:Magnetics