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Multi-sensing method based on one-core fiber

A core fiber, multi-sensing technology, applied in the multi-sensing field based on one-core fiber, can solve the problem of wasting fiber core resources and achieve the effect of saving fiber resources

Inactive Publication Date: 2014-04-23
江西华神智能物联技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the existing optical fiber sensing products all realize the sensing of one type of signal on one fiber core. When it is necessary to detect different types of signals, multiple fiber cores are required, which wastes fiber core resources.

Method used

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  • Multi-sensing method based on one-core fiber

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Embodiment Construction

[0022] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0023] see figure 1 . It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of ​​the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in actual implementation. Dimensional drawing, the type, quantity and proportion of each component can be changed arbitrarily during actual implementation, and the component layout type may also be more complicated.

[0024] Such as figure 1 As shown, the present invention provides a multi-sensing method based on one-core optical fiber.

[0025] In step S1, different signals are used to modulate the optical sign...

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Abstract

The invention provides a multi-sensing method based on a one-core fiber. According to the multi-sensing method provided by the invention, an optical signal, which is transmitted by the one-core fiber, is modulated based on a multiplexing technology by different signals, and the modulated optical signal, which is output by the one-core fiber, is processed based on the multiplexing technology, so that each signal, which is sensed by the one-core fiber, is obtained, wherein the multiplexing technology comprises one or more of wavelength division multiplexing, time division multiplexing, spatial multiplexing and algorithm multiplexing; furthermore, distributed sensing and point sensing can be synchronously carried out by the one-core fiber, so that a plurality of signals can be sensed on the basis of the one-core fiber, the one-core fiber is further used for transmitting a communication signal or is taken as an energy supplement device for providing energy for an active transducer, so that multiple purposes of the one-core fiber are realized, and the fiber resources are effectively saved.

Description

technical field [0001] The invention relates to the field of optical fiber sensing, in particular to a multi-sensing method based on one-core optical fiber. Background technique [0002] Optical fiber has the advantages of wide operating frequency band and large dynamic range. It is suitable for telemetry and remote control, and is an excellent low-loss transmission line. In addition, under certain conditions, the optical fiber is particularly easy to accept the load of the measured signal or field, so it is an excellent sensitive element. Because the optical fiber itself has no charge, small size, light weight, easy bending, anti-electromagnetic interference, and good anti-radiation performance, it is especially suitable for use in harsh environments such as flammable, explosive, strictly limited space, and strong electromagnetic interference. Therefore, the optical fiber sensing technology has received great attention since it came out, and has been researched and applied...

Claims

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Application Information

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IPC IPC(8): G01D5/26
Inventor 林东刘小燕
Owner 江西华神智能物联技术有限公司