An optical fiber adapter device applied to optical fiber gas sensing
An optical fiber adaptation and gas sensing technology, applied in the field of optical fiber couplers, can solve the problems of low gas detection test efficiency and the inability of optical fiber adapters to meet the rapid exchange of gas in optical fibers.
Active Publication Date: 2021-05-11
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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[0005] This application provides an optical fiber adapter device applied to optical fiber gas sensing to solve the technical problem in the prior art that the efficiency of the gas detection test is extremely low due to the inability of the optical fiber adapter to meet the rapid exchange of gas in the optical fiber
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[0029] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0030] see figure 1 , which is a schematic diagram of the basic structure of an optical fiber adapter device applied to optical fiber gas sensing provided by an embodiment of the present invention, figure 2 A cross-sectional view of an optical fiber adapter device applied to optical fiber gas sensing provided by an embodiment of the present...
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This application discloses an optical fiber adapter device for optical fiber gas sensing, including: an adapter body, a clamp, an optical lens, and an optical fiber sleeve. The clamp is provided with a window and a screw hole; The lens is clamped in the depression, and the bottom surface of the depression is provided with an inverted T-shaped groove, and the inverted T-shaped groove is provided with the first to four through holes; the adapter body is provided with a pressure monitoring port, and the pressure monitoring port is connected with the first through hole The adapter body is also provided with an air inlet, an air outlet, and an optical fiber inlet. The air inlet and outlet are respectively connected with the second and third through holes, the optical fiber inlet is connected with the fourth through hole, and the optical fiber inlet is provided with a compression threaded joint , the optical fiber sleeve runs through the compression threaded joint and the fourth through hole. The optical fiber adapter device of the present application can not only effectively couple laser light into the fiber core while fixing the optical fiber, but also provide a channel for gas to enter and exit the optical fiber, so as to realize the rapid exchange of gas in the optical fiber and further improve the efficiency of the gas detection test.
Description
technical field [0001] The present application relates to the technical field of optical fiber couplers, in particular to an optical fiber adapter device applied to optical fiber gas sensing. Background technique [0002] The detection and analysis of trace gases based on Raman spectroscopy technology uses a single wavelength laser to simultaneously realize the direct detection of mixed gases. Due to the special photonic bandgap structure of the hollow-core photonic crystal fiber, the laser beam can be confined in the middle hollow core area for transmission. The laser light in the fiber interacts with the gas to generate Raman scattering signals. Combining it with Raman spectroscopy technology can effectively improve the collection efficiency of Raman scattered photons, thereby increasing the gas Raman signal intensity. [0003] Optical fibers are generally connected through optical fiber adapters. Optical fiber adapter is a device for detachable connection between optic...
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IPC IPC(8): G01N21/65G01N21/01
CPCG01N21/01G01N21/65
Inventor 钱国超彭庆军王建新陈伟根万福马仪程志万周仿荣邹德旭黄星洪志湖刘光祺颜冰
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST