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Development and Study of a System for Monitoring the State of Instrumentation in a Laser-Interference Geophysical Complex

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Measurement Techniques Aims and scope

This article presents results on the development, creation, and application of a control system for long-base laser strain gauges intended for the study of geodynamic processes over a wide frequency range. The control system includes: a long base laser strain gauge employing test quadrature signals based on an unequal-arm Michelson laser interferometer, a recording apparatus, and a device for data collection and storage. A geophysical laser-interference complex is described which serves as a basis for constructing interregional spatially separated measurement systems. The efficiency of laser-interference measurement devices based on a Michelson interferometer is demonstrated in accounting for the influence of external factors during geophysical measurements employing laser strain gauges. A strain-gauge recording system based on a Michelson interferometer is described which yields high sensitivity and permits detection of high frequency oscillations (up to 2 kHz). The advantages of this monitoring system compared to the previous versions are noted: the optical scheme of the proposed interferometer contains fewer parts and the recording system is more reliable and consumes less power.

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Authors and Affiliations

  1. Il’ichev Pacific Oceanological Institute, Far Eastern Branch of the Russian Academy of Sciences (POI FEB RAS), Vladivostok, Russia

    V. A. Shvets, G. I. Dolgikh, A. A. Plotnikov & S. V. Yakovenko

Authors
  1. V. A. Shvets
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  2. G. I. Dolgikh
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  3. A. A. Plotnikov
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  4. S. V. Yakovenko
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Corresponding author

Correspondence to V. A. Shvets.

Additional information

Translated from Izmeritel’naya Tekhnika, No. 3, pp. 22–28, March, 2021.

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Shvets, V.A., Dolgikh, G.I., Plotnikov, A.A. et al. Development and Study of a System for Monitoring the State of Instrumentation in a Laser-Interference Geophysical Complex. Meas Tech 64, 180–187 (2021). https://doi.org/10.1007/s11018-021-01916-2

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  • DOI: https://doi.org/10.1007/s11018-021-01916-2

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