Optical fiber sensing device based on phase wave carrying technology
An optical fiber sensing and phase carrier technology, applied in the direction of using optical devices to transmit sensing components, can solve the problems of low detection sensitivity, low spatial distribution, and inability to sense vibration, and achieve high detection sensitivity, high spatial distribution, and high spatial distribution. The effect of improving detection sensitivity
Inactive Publication Date: 2015-04-22
新疆美特智能安全工程股份有限公司
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However, the existing distributed optical fiber sensing technology is based on all-optical demodulation technology, when the sensing system cannot perceive the vibration due to the polarization disorder caused by excessive vibration
[0004] In the process of realizing the present invention, the inventors found that there are at least defects in the prior art such as low spatial distribution rate, low detection sensitivity, small measurement range and long response time
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[0037] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0038] According to an embodiment of the present invention, as shown in the drawings of the specification, an optical fiber sensing device based on phase carrier technology is provided.
[0039] The optical fiber sensing device based on the phase carrier technology of this embodiment mainly includes a light source generating device based on a distributed optical fiber sensing system, and a periodic signal phase carrier device arranged behind the light source generating device according to the light propagation path. The light source generating device includes a laser generator. The distributed optical fiber sensing system is an optical fiber distributed sensing syst...
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The invention discloses an optical fiber sensing device based on phase wave carrying technology. The device mainly comprises an optical source generating device based on a distributed optical fiber sensing system and a periodic signal phase wave carrying device which is arranged behind the optical source generating device by matching with propagation path of light. The optical fiber sensing device based on the phase wave carrying technology is capable of overcoming the defects in the prior art that space distribution rate is low, detection sensitivity is low, measurement range is small, response time is long and the like so as to realize the advantages of high space distribution rate, high detection sensitivity, large measurement range and short response time.
Description
technical field [0001] The invention relates to the technical field of signal detection and analysis, in particular to an optical fiber sensing device based on phase carrier technology. Background technique [0002] With the development of laser technology and communication technology, optical fiber sensing technology has developed rapidly in recent years, and began to have the earliest military use and enter civilian use. [0003] Distributed Fiber Optic Sensing Systems (see Figure 7 ) is one of them, and has a very broad application prospect. However, the existing distributed optical fiber sensing technology is based on all-optical demodulation technology, when the sensing system cannot perceive vibration due to polarization disorder caused by excessive vibration. [0004] In the process of realizing the present invention, the inventors found that the prior art at least has defects such as low spatial distribution rate, low detection sensitivity, small measurement range ...
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IPC IPC(8): G01D5/353
Inventor 罗广迪司崇杰王文伟蒋海军
Owner 新疆美特智能安全工程股份有限公司