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Cabling construction of distributed optical fibre sensor

A distributed optical fiber and sensor technology, applied in the direction of fiber mechanical structure, etc., can solve the problems of difficult engineering and commercialization.

Inactive Publication Date: 2008-01-23
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The method to solve this contradiction is to introduce the reference optical fiber as the standard signal and the sensing optical fiber according to the different physical quantities, adding a sensitive coating to form the sensing signal, which is convenient for comparison and signal analysis. Obviously, there are problems that are not easy to engineer and commercialize.

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  • Cabling construction of distributed optical fibre sensor
  • Cabling construction of distributed optical fibre sensor
  • Cabling construction of distributed optical fibre sensor

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Embodiment Construction

[0024] The cabling structure of the distributed optical fiber sensor according to the present invention will be described in detail below according to the accompanying drawings.

[0025] The 8-type optical cable [300] is composed of a small-radius sensing optical cable [200] and a large-radius transmission reference optical cable [100]. The large-radius transmission reference cable [100] is connected with the small-radius sensing cable [200] in one process. Together constitute the distributed sensing optical fiber cable [300], the composition of the distributed sensing optical fiber cable [300] can be distributed (Fig. 1), side-by-side (Fig. 2), compact (Fig. 3) or embedded ( Figure 4).

[0026] For the transmission reference optical cable [100], it can be constructed in a layered twisted structure (Fig. 5), a skeleton structure (Fig. 6), or a central bundle tube structure (Fig. 7). Its constitution is as follows: As shown in the figure.

[0027] Wherein the strengthening me...

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Abstract

This invention relates ton one distribution fiber sensor cable structure, which comprises sensor cable and transmission reference cable section 8 shape cable, wherein, the sensor cable small radium and large radium transmission reference cable are connected together to form the distribution sensor fiber cable and to form distributed and parallel and compact or imbedded structure; the transmission reference cable forms can be of layer twisting structure or skeleton structure or center beam structure; the sensor cable forms skeleton structure or center beam structure.

Description

technical field [0001] The invention relates to a cabled structure of a distributed optical fiber sensor. Background technique [0002] Distributed optical fiber sensors have attracted great attention because they can measure vibration, pressure, stress, temperature, radiation, etc. in radial space physical fields. According to the principle of modulating the intensity, phase, polarization state and frequency of the light transmitted by the optical fiber by the vibration, pressure, temperature, radiation and other physical quantities of the space physical field, a large number of distributed optical fiber sensing models are proposed. [0003] At the same time, a method is proposed to locate the distribution points where the physical quantities such as vibration, pressure, stress, temperature, and radiation of the space physical field modulate the intensity, phase, polarization state, and frequency of the light transmitted by the optical fiber: there are mainly various Optic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/44
Inventor 张金权王小军周劲峰郭澎董尉焦书浩朱建新王飞方德学王赢李岩范向红刘平林
Owner BC P INC CHINA NAT PETROLEUM CORP