Large-dynamic range Brillouin rapid measurement system based on multiple slope assistance

A technology with a large dynamic range and a measurement system, applied in the field of data measurement, can solve problems such as small dynamic range, and achieve the effects of improving the sensing speed, improving the dynamic range of accurate measurement, and improving the signal-to-noise ratio.

Active Publication Date: 2019-05-07
成都塔科光电技术有限公司
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Problems solved by technology

[0003] The present invention provides a fast Brillouin measurement system with large dynamic range based on multi-slope assistance, so as to solve the problem of small dynamic range existing in the current slope-assisted Brillouin time-domain analysis and measurement system

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  • Large-dynamic range Brillouin rapid measurement system based on multiple slope assistance
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  • Large-dynamic range Brillouin rapid measurement system based on multiple slope assistance

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Embodiment Construction

[0037] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the following describes the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings For further detailed explanation.

[0038] In the description of the present invention, unless otherwise specified and limited, it should be noted that the term "connection" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be Directly connected or indirectly connected through an intermediary, those skilled in the art can understand the specific meanings of the above terms according to specific situations.

[0039] seefigure 1 , is a bl...

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Abstract

The invention provides a large-dynamic range Brillouin rapid measurement system based on multiple slope assistance. An output end of a laser is connected to an input end of a first coupler. A first output end of the first coupler is connected with an input end of the second coupler through a first modulator, a first optical amplifier and a filter in sequence. A first output end of the second coupler is connected with a first input end of a third coupler through a second modulator. A second output end of the second coupler is connected with a second input end of the third coupler through a third modulator. An output end of the third coupler is connected with a second end of a sensing optical fiber through an isolator. A second output end of the first coupler is connected with a first end ofa first circulator through a fourth modulator, a second optical amplifier and a scrambler in sequence. The first circulator is connected with a first end of the sensing optical fiber at a second end,and is connected with an input end of a photoelectric detector at a third end. An output end of the photoelectric detector is connected with a processor through an acquisition card. According to thelarge-dynamic range Brillouin rapid measurement system based on the multiple slope assistance, the dynamic range of accurate measurement can be improved.

Description

technical field [0001] The invention belongs to the field of data measurement, in particular to a large dynamic range Brillouin rapid measurement system based on multi-slope assistance. Background technique [0002] With the continuous construction of large-scale infrastructure, online safety and health monitoring and fault prevention of facilities such as large bridge structures, oil pipelines, highways, and railways have become important needs for economic development. For example, during the operation of the bridge, it is necessary to implant multiple sensors at fixed points to monitor the physical parameters of the bridge such as temperature, pressure, strain, and vibration, so as to provide an important basis for the health status and damage assessment of the building. At present, this kind of detection work mainly relies on the sensing array composed of various point-type electrical sensors. When there are many parameters to be tested and the components to be tested ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/16
Inventor 朱涛郑华张敬栋
Owner 成都塔科光电技术有限公司
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