Optical fiber cladding SPR micro-bending sensor and calibration device thereof

An optical fiber cladding and calibration device technology, applied in the direction of using optical devices, measuring devices, instruments, etc., can solve the problems of low sensitivity, low resolution, complex preparation process, etc., and achieve high sensitivity, small size, and low cost. Effect

Pending Publication Date: 2019-01-04
CHONGQING THREE GORGES UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, expensive lasers and masks are required in the fabrication process of this kind of sensor, and complex preparation process is required; the optical fiber interferometric microbend sensor is mainly the Mach-Zehnder interferometer type, which is simple to manufacture and has good mechanical strength, but the resolution low, low sensitivity

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  • Optical fiber cladding SPR micro-bending sensor and calibration device thereof
  • Optical fiber cladding SPR micro-bending sensor and calibration device thereof
  • Optical fiber cladding SPR micro-bending sensor and calibration device thereof

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Embodiment Construction

[0036]Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.

[0037] Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than physical drawings, and should ...

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Abstract

The invention belongs to the field of optical fiber sensing, and mainly relates to an optical fiber cladding SPR micro-bending sensor and a calibration device thereof. The optical fiber cladding SPR micro-bending sensor disclosed by the invention has the advantages that the manufacturing difficulty and the manufacturing cost of the optical fiber SPR sensor are reduced; the measurement of the bending curvature through the SPR effect is innovatively proposed and verified, and the research field of the traditional optical fiber type micro-bending sensor is expanded to a certain extent. The optical fiber cladding SPR micro-bending sensor has obvious advantages in landslide disaster monitoring, the large landslide disaster frequency generation points are buried, and once tiny deformation occurson the earth surface, and the landslide intensity can be speculated by observing the depth and the displacement of the SPR resonance peak on the spectrometer, so that the landslide disaster can be monitored, and the optical fiber cladding SPR micro-bending sensor has a wide application value.

Description

technical field [0001] The invention belongs to the field of optical fiber sensing, and relates to an optical fiber cladding SPR micro-bending sensor and a calibration device thereof. Background technique [0002] Fiber optic curvature sensors have attracted extensive attention of researchers due to their extensive applications in the field of bending measurement. Bending measurement technology is of great significance in the fields of geophysics, aerospace, machinery and various building structure health monitoring. Because the state of mechanical construction, large buildings and stress parameters are directly related to bending, it is also an indirect means to obtain the mechanical conditions of components when measuring bending; in large building structures such as bridges, houses and rails, in large In oil and gas storage and transportation equipment such as oil tanks, natural gas and gasoline transportation pipelines, in military equipment such as rockets, large missi...

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Application Information

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IPC IPC(8): G01B11/255
CPCG01B11/255
Inventor 魏勇吴萍胡江西苏于东刘春兰聂祥飞
Owner CHONGQING THREE GORGES UNIV
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