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Journal of Automation and Information Sciences
SJR: 0.232 SNIP: 0.464 CiteScore™: 0.27

ISSN Imprimer: 1064-2315
ISSN En ligne: 2163-9337

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Journal of Automation and Information Sciences

DOI: 10.1615/J Automat Inf Scien.v38.i4.50
pages 54-68

Cryogenic-Optical Sensor for High-Sensitive Gravitational Measurements

Vasiliy V. Kozorez
Kiev State Hetman Pyetr Konashevich-Sagaidachnyi Academy of Water Transport, Kiev, Ukraine
Ruslan A. Malitskiy
Institute of Physics of National Academy of Sciences of Ukraine, Kiev, Ukraine
Panos M. Pardalos
University of Florida, USA
Anatoliy M. Negriyko
Institute of Physics, National Academy of Sciences of Ukraine, Kiev, Science Av.46, 01022, Ukraine
Elena G. Udovitskaya
Institute of Physics of National Academy of Sciences of Ukraine, Kiev, Ukraine
Vladimir M. Khodakovskiy
Institute of Physics of National Academy of Sciences of Ukraine, Kiev, Ukraine
Khasankhan M. Ismaili
Research Institute "Agorithm-Engineering" of Academy of Sciences of Uzbekistan, Tashkent, Uzbekistan
Oleg K. Cheremnykh
Institute of Space Research of National Academy of Sciences of Ukraine and State Space Agency of Ukraine, Kiev, Ukraine
Vitaliy A. Yatsenko
Institute of Space Research of National Academy of Sciences of Ukraine and National Space Agency of Ukraine, Kyiv, Ukraine
Leonid P. Yatsenko
Institute of Physics of National Academy of Sciences of Ukraine, Kiev, Ukraine

RÉSUMÉ

The conception of new cryogenic-optical sensor for application in space, geodynamics and basic experiments is described. The sensor is based on magnetic suspension with a levitating probing body position and the signal processing system. The Michelson interferometer based on laser diode and single mode optical fiber was used as displacement sensor for probing body. Parasitic interference noises were appreciably suppressed by matching of laser diode radiation coherence length with difference of optical path in interferometer. The minimal detected displacement of the probing body was 0.1 nm. Design of sensor and mathematical model of dynamics of superconducting suspension were described. Results of experimental tests for magnetic suspension coupled with optical interferometric sensor of displacements with sub-nanometer sensitivity are presented.


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