DC-squid electronics based on adaptive positive feedback: Experiments

Heikki Seppä, Antti Ahonen, Jukka Knuuttila, Juha Simola, Visa Vilkman

    Research output: Contribution to journalArticleScientificpeer-review

    35 Citations (Scopus)

    Abstract

    It is shown that DC-SQUID read-out electronics can be realized utilizing positive feedback without deteriorating the SQUID noise performance. The required gain rise is achieved by interconnecting the SQUID output and a flux modulation coil via a cooled FET acting as a voltage-controlled resistor; different SQUIDs with different types of FETs have been studied experimentally. Possible ways of adaptively controlling the feedback gain produced by the positive feedback are briefly discussed.
    Original languageEnglish
    Pages (from-to)2488 - 2490
    Number of pages3
    JournalIEEE Transactions on Magnetics
    Volume27
    Issue number2
    DOIs
    Publication statusPublished - 1991
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    SQUIDs
    Electronic equipment
    Feedback
    Field effect transistors
    Experiments
    Resistors
    Modulation
    Fluxes
    Electric potential

    Cite this

    Seppä, Heikki ; Ahonen, Antti ; Knuuttila, Jukka ; Simola, Juha ; Vilkman, Visa. / DC-squid electronics based on adaptive positive feedback : Experiments. In: IEEE Transactions on Magnetics. 1991 ; Vol. 27, No. 2. pp. 2488 - 2490.
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    Seppä, H, Ahonen, A, Knuuttila, J, Simola, J & Vilkman, V 1991, 'DC-squid electronics based on adaptive positive feedback: Experiments', IEEE Transactions on Magnetics, vol. 27, no. 2, pp. 2488 - 2490. https://doi.org/10.1109/20.133723

    DC-squid electronics based on adaptive positive feedback : Experiments. / Seppä, Heikki; Ahonen, Antti; Knuuttila, Jukka; Simola, Juha; Vilkman, Visa.

    In: IEEE Transactions on Magnetics, Vol. 27, No. 2, 1991, p. 2488 - 2490.

    Research output: Contribution to journalArticleScientificpeer-review

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    AU - Seppä, Heikki

    AU - Ahonen, Antti

    AU - Knuuttila, Jukka

    AU - Simola, Juha

    AU - Vilkman, Visa

    PY - 1991

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