A Fiber Bragg Grating Temperature Sensor with Modular Structure
A temperature sensor and fiber grating technology, applied in the sensor field, can solve problems such as being unsuitable for mass production, easy to damage fiber grating, product quality accidents, etc., and achieve the effects of simple assembly, good quality and high efficiency
Inactive Publication Date: 2014-10-29
BOOMINGWAVE INTERNET OF THINGS
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Problems solved by technology
Production practice has found that the optical fiber grating temperature sensor with this structure has complicated procedures and is easy to damage the optical fiber grating during production and assembly, resulting in product quality accidents and is not suitable for mass production
Method used
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[0013] The present invention will be further described now in conjunction with accompanying drawing,
[0014] A fiber grating temperature sensor with a modular structure, including an optical fiber fixed substrate, its composition is: the optical fiber fixed substrate 5 is a flat narrow cuboid, and four baffles parallel to each other are vertically and symmetrically erected from both ends to the middle on its surface As a limiting platform 8; near the root of the baffle, from the side edge to the center of the baffle, there is a cut slit hole 9 for passing through the optical fiber with a parallel bottom surface; the baffle 10 above the cut slit hole can be pressed It needs to be cut; the optical fiber grating 6 passing through the cutting slit hole is a loose arc-shaped optical fiber grating between the middle limit table; between the baffle plates at both ends, there is an optical fiber grating pigtail bonding fixed point 7; The outer fiber grating pigtail protrudes from the...
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The invention relates to a fiber grating temperature sensor with a modularized structure, belonging to the technical field of sensors. The fiber grating temperature sensor with the modularized structure is characterized in that a fiber fixed base plate forms an eccentric narrow cuboid, and four mutually parallel baffle plates are symmetrically vertically erected on the surface of the fiber fixed base plate from both ends to the center; joint cutting holes parallel to bottom surfaces and used for being penetrated by fiber gratings are arranged on the approximate root parts of the baffle plates from side edges to positions passing through the centers of the baffle plates; the baffle plates can be cut as required above the joint cutting holes; the fiber gratings penetrating through the joint cutting holes are loose arc-shaped fiber gratings by being positioned among middle limiting platforms; a fiber grating tail fiber bonding fixed point is arranged between the baffle plates positioned on the both ends; fiber grating tail fibers from the fiber grating tail fiber bonding fixed point to an outer side extend out of the fiber grating tail fiber bonding fixed point and penetrate through the joint cutting holes positioned on an edge; and integral fiber gratings are positioned in a protecting pipe to form a fiber grating unstressed module. The invention has the positive effects of easy processing and assembly, good quality, high efficiency, suitability for batched production and a few parts because the fiber fixed base plate is integrally designed in a modularizing way.
Description
technical field [0001] The invention belongs to the technical field of sensors, and specifically relates to the design and production technology of an optical fiber grating temperature sensor used in the Internet of Things. Background technique [0002] Fiber Bragg grating temperature sensor is characterized by 1) no electric detection, intrinsic explosion-proof, anti-electromagnetic interference; 2) water-resistant and anti-corrosion; 3) high field accuracy; 4) using wavelength coding, it can be connected in series, and it is easy to build medium and large sensor networks; 5 ) has many advantages such as long-distance detection. In the past ten years, it has been widely used in petrochemical oil depot fire detection, electric hot spot detection, thermal pipeline, civil engineering temperature measurement and other fields. [0003] At present, the structure of fiber Bragg grating temperature sensor is mainly based on the design of fiber Bragg grating without external stress....
Claims
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IPC IPC(8): G01K11/32G01K11/3213
Inventor 韦春龙
Owner BOOMINGWAVE INTERNET OF THINGS