FIELD: machine building.
SUBSTANCE: device includes in-series connected receiving converter of acoustic vibrations created with an object to an electric signal and an analysis unit. Receiving converter is made in the form of a coherent reflectometer containing an optic source, a fibre-optic cable intended for setting along the pipeline as a distributed sensor of acoustic vibrations, and a scattered radiation receiver. Fibre-optic cable is made of a combination of series connected pieces of optic fibres located so that Rayleigh scattering coefficient of each next piece, starting from the optic source, is larger than Rayleigh scattering coefficient of the previous piece.
EFFECT: increasing range and improving accuracy of detection and recording of position of a controlled object in a pipeline.
3 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
RU2639927C1 |
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| DEVICE FOR MONITORING VIBROACOUSTIC CHARACTERISTICS OF EXTENDED OBJECT WITH RECOGNITION SYSTEM BASED ON MACHINE LEARNING AND NEURAL NETWORKS | 2023 |
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RU2650620C1 |
