RU95107380A - Fibre-optical meter of fields of speeds of sea currents - Google Patents

Fibre-optical meter of fields of speeds of sea currents

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Publication number
RU95107380A
RU95107380A RU95107380/28A RU95107380A RU95107380A RU 95107380 A RU95107380 A RU 95107380A RU 95107380/28 A RU95107380/28 A RU 95107380/28A RU 95107380 A RU95107380 A RU 95107380A RU 95107380 A RU95107380 A RU 95107380A
Authority
RU
Russia
Prior art keywords
fibre
optical meter
carrier frequencies
speeds
fields
Prior art date
Application number
RU95107380/28A
Other languages
Russian (ru)
Other versions
RU2105986C1 (en
Inventor
Ю.Н. Власов
В.К. Маслов
С.В. Сильвестров
А.Д. Толстоухов
Original Assignee
Государственное предприятие "Всероссийский научно-исследовательский институт физико-технических и радиотехнических измерений"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Государственное предприятие "Всероссийский научно-исследовательский институт физико-технических и радиотехнических измерений" filed Critical Государственное предприятие "Всероссийский научно-исследовательский институт физико-технических и радиотехнических измерений"
Priority to RU95107380A priority Critical patent/RU2105986C1/en
Publication of RU95107380A publication Critical patent/RU95107380A/en
Application granted granted Critical
Publication of RU2105986C1 publication Critical patent/RU2105986C1/en

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  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

FIELD: measurement technology, underwater acoustics, hydrophysics. SUBSTANCE: invention can be used to control profile of speed of sea current. Essence of invention lies in placement of fibre-optical meter manufactured in the form of interferometer in examined area of ocean. Parts of fibres of object coil are attached to internal surfaces of hollow piezoelectric cylinders to which different carrier frequencies are supplied from generators of electric oscillations. Reference coil is positioned inside typical cylinder which can be located outside of current. Piezoelectric cylinders are fixed at known distance from each other in examined flow of liquid. Modulated signals appear across output of photodetector of fibre-optical meter on various carrier frequencies which are amplified and filtered by series of band-pass filters. Then signals are detected, processed and fed into register which plots fields of speeds of flow of liquid. EFFECT: enhanced functional reliability of fibre-optical meter. 2 cl, 3 dwg

Claims (1)

Изобретение относится к измерительной технике и может быть использовано в гидроакустике и гидрофизике для контроля профиля скорости морского течения. Сущность изобретения заключается в том, что в исследуемой области океана располагают волоконно-оптический измеритель (ВОИ), выполненный в виде интерферометра. Части волокна предметной катушки закрепляют на внутренней поверхности полых пьезоэлектрических цилиндров, на которые подают различные несущие частоты от генераторов электрических колебаний. Опорную катушку располагают внутри обычного цилиндра, который может быть размещен вне потока. Пьезоэлектрические цилиндры фиксируют на известном расстоянии друг от друга в исследуемом потоке жидкости. На выходе фотоприемника ВОИ появляются модулированны сигналы на различных несущих частотах, которые усиливаются и отфильтровываются серией полосовых фильтров. Затем сигналы детектируются, обрабатываются и подаются в регистратор, производящий построение поля скоростей потока жидкости.The invention relates to measuring equipment and can be used in hydroacoustics and hydrophysics to control the velocity profile of the sea current. The essence of the invention lies in the fact that in the studied region of the ocean have a fiber optic meter (VOI), made in the form of an interferometer. Parts of the fiber of the object coil are fixed on the inner surface of the hollow piezoelectric cylinders, to which various carrier frequencies from electric oscillation generators are supplied. The support coil is located inside a conventional cylinder, which can be placed off-stream. Piezoelectric cylinders are fixed at a known distance from each other in the studied fluid flow. At the output of the VOI photodetector, modulated signals appear at different carrier frequencies, which are amplified and filtered by a series of band-pass filters. Then the signals are detected, processed and fed to the recorder, which produces the construction of the velocity field of the fluid flow.
RU95107380A 1995-05-06 1995-05-06 Fiber-optical meter of sea current velocity fields RU2105986C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU95107380A RU2105986C1 (en) 1995-05-06 1995-05-06 Fiber-optical meter of sea current velocity fields

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU95107380A RU2105986C1 (en) 1995-05-06 1995-05-06 Fiber-optical meter of sea current velocity fields

Publications (2)

Publication Number Publication Date
RU95107380A true RU95107380A (en) 1996-12-20
RU2105986C1 RU2105986C1 (en) 1998-02-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU95107380A RU2105986C1 (en) 1995-05-06 1995-05-06 Fiber-optical meter of sea current velocity fields

Country Status (1)

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RU (1) RU2105986C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004104536A1 (en) * 2003-05-23 2004-12-02 Sensor Highway Limited Distributed temperature sensing system with remote reference coil

Also Published As

Publication number Publication date
RU2105986C1 (en) 1998-02-27

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