Superconducting gravimeters based on advanced nanomaterials and quantum neural network
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Date
2022
Authors
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Journal Title
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КПІ ім. Ігоря Сікорського
Abstract
The paper is focused on a new concept of a cryogenic-optical sensor intended
for use in the space industry, geodynamics, and fundamental experiments.
The basis of the sensor is a magnetic suspension with a levitating test body, a highprecision
optical recorder of mechanical coordinates of the levitating body, and a
signal-processing system. A Michelson-type interferometer with a laser diode and a
single-mode optical fiber was used to measure the test body's displacements. The
coordination of the laser diode coherence length and the difference in the interferometer
optical lengths of the arms made it possible to eliminate coherent noise
caused by interference from spurious reflections. The minimum recorded shift of the
test body was 0.1 nm. The design of the sensor and the mathematical model of the
superconducting suspension dynamics are presented. The results of experimental
studies of a magnetic suspension together with an optical interferometric displacement
sensor having a subnanometer sensitivity are shown.
Description
Keywords
magnetic suspension, laser interferometer, optical fiber, displacement measurement, quantum neural network, магнітна підвіска, лазерний інтерферометр, оптичне волокно, вимірювання зміщення, квантова нейронна мережі
Citation
Yatsenko, V. Superconducting gravimeters based on advanced nanomaterials and quantum neural network / V. Yatsenko, S. Kruchinin, P. Bidyuk // Системні дослідження та інформаційні технології : міжнародний науково-технічний журнал. – 2022. – № 3. – С. 30-45. – Бібліогр.: 8 назв.