There has been recently considerable progress in the development of Superconducting Quantum Interference Devices (SQUIDs) fabricated from thin films of high transition temperature superconductors. For marine applications where the signal extends to very low frequencies (due to the opacity of sea water at higher frequencies), the level of 1/f noise is of particular interest. This noise may be inherent to the junctions where it arises from critical current fluctuations or it may arise from the motion of vortices trapped in the body of the SQUID. It is possible to reduce the contribution of the first mechanism substantially by applying modulation schemes to the DC SQUID, whereas the latter mechanism cannot be reduced in this way. In this paper, we present firstly a synthesis of important parameters of SQUIDs, read-out schemes and noise reduction techniques, noise analysis and measurements. Finally, considerations are given on the use of superconducting magnetometers in marine non shielded environment.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    ELF monitoring at sea with vectorial high sensitivity magnetometers


    Beteiligte:
    Quellec, N. (Autor:in) / Certenais, J. (Autor:in)


    Erscheinungsdatum :

    1997


    Format / Umfang :

    Seiten, 2 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Magnetometers

    V. M. Ryzhkov / I. G. Zhurii / L. N. Novikov et al. | NTIS | 1974


    Factors affecting the sensitivity of gamma- level ring-core magnetometers.

    Chiarodo, R. A. / Gordon, D. I. / Lundsten, R. H. | NTRS | 1965


    Interference mitigation in magnetometers

    KUSHLEYEV ALEKSANDR / MELLINGER III DANIEL WARREN / VAN SCHOYCK TRAVIS | Europäisches Patentamt | 2020

    Freier Zugriff

    Magnetometers for space research

    Ness, N. F. | NTRS | 1970


    INTERFERENCE MITIGATION IN MAGNETOMETERS

    KUSHLEYEV ALEKSANDR / MELLINGER III DANIEL WARREN / VAN SCHOYCK TRAVIS | Europäisches Patentamt | 2018

    Freier Zugriff