An all-glass packaging device and packaging method for a fiber grating
A fiber grating and packaging device technology, which is applied in the field of sensors, can solve the problems of fiber grating sensor parameter changes and life shortening, and achieve the effects of long-term stable optical performance, extended service life, and accurate measurement
Active Publication Date: 2022-05-24
胡仲春
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Problems solved by technology
[0005] Aiming at the above-mentioned problems and defects in the prior art, the present invention provides an all-glass encapsulation device and encapsulation method of an optical fiber grating, which realizes an all-glass encapsulation of an optical fiber grating element and overcomes the problems caused by the aging of epoxy resin. FBG sensor parameters change, life shortening defect, the optical performance of FBG is stable for a long time, and the performance of FBG sensor is stable and reliable
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[0048] like figure 1 As shown, an all-glass encapsulation device for fiber grating includes optical fiber 1, a first group of propulsion wheels 2, fiber gratings 3, a first laser 4, a second laser 5, a second group of propulsion wheels 6, a container 7, and a glycerin 8 , The third group of propelling wheels 9 , the sensor base mold 10 , and the molten glass nozzle 11 .
[0049] Optical fiber 1 is a glass optical fiber made of silica material, including a core 1-1 made of silica material, a cladding layer 1-2 made of silica material, and a coating layer 1-2 made of acrylate material that plays a protective role 3.
[0050] The first group of push wheels 2 is composed of upper and lower rollers, and the rollers are made of silicone. The optical fiber 1 is located between the upper and lower rollers and is in contact with the surface of the rollers. The upper roller rotates counterclockwise, and the lower roller rolls clockwise, thereby driving the optical fiber 1 forward.
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The invention discloses a fiber grating all-glass packaging device and a packaging method. The packaging device includes an optical fiber, a first group of propulsion wheels, a fiber grating, a first laser, a second laser, a second group of propulsion wheels, a container, glycerin, The third set of propulsion wheels, the sensor matrix mold, and the glass melt nozzle; the three sets of propulsion wheels are arranged in sequence from left to right, each set of propulsion wheels includes two upper and lower rollers, and the optical fiber is located between the upper and lower rollers and is in contact with the surface of the rollers The fiber grating is located on the optical fiber, the first laser and the second laser are arranged correspondingly up and down, glycerin is located in the container; the sensor base mold is located on the right side of the third set of propulsion wheels, and the glass melt nozzle is located above the sensor base mold. The invention realizes the all-glass encapsulation of the fiber grating element, overcomes the defects of fiber grating sensor parameter change and life shortening caused by the aging of epoxy resin, the optical performance of the fiber grating is stable for a long time, and the fiber grating sensor performance is stable and reliable.
Description
technical field [0001] The invention belongs to the technical field of sensors, relates to optoelectronic device packaging and optical fiber grating sensing technology, and in particular relates to an all-glass packaging device and packaging method for optical fiber gratings. Background technique [0002] In the past two decades, fiber grating sensing technology has developed rapidly and has been widely used in civil, marine, mechanical and other engineering fields. Different from the conventional sensor based on electromagnetic signal principle, the fiber grating sensor uses light as the signal, and the optical signal has obvious advantages such as anti-electromagnetic interference and long-distance transmission. In addition, the fiber grating element itself is made of glass (silicon dioxide). The metal material used in the sensor is more stable, corrosion-resistant and has a long service life. Therefore, fiber grating sensors have been considered as a new technology that ...
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IPC IPC(8): G02B6/02
CPCG02B6/02057G02B6/02209
Inventor 胡仲春郭永兴张健
Owner 胡仲春