Making method and integrated system for pre-embedding fiber grating sensor into electromagnetic wire
A technology of optical fiber gratings and electromagnetic wires, which is applied in the manufacture of cables/conductors, parts of transformers/inductors, instruments, etc., to achieve excellent embedding effects, simple preparation processes, and improved service life
Active Publication Date: 2013-04-17
WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST
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[0004] The technical problem to be solved by the present invention is to provide a manufacturing method and a complete system for pre-embedding the fiber grating sensor in the electromagnetic wire in order to solve the problem of the arrangement of the fiber grating sensor inside the electromagnetic wire
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[0012] Explanation of symbols in the drawings: 1-pay-off device, 2-fiber grating sensor, 3-fiber pay-off wheel, 4-oiler, 5-guiding device, 6-wrapping device, 7-traction device, 8-wire take-up device , 9-magnet wire with groove, 10-bracket, 501-V groove guide wheel, 502-vertical guide wheel, 503-horizontal guide wheel.
[0013] Hereinafter, the present invention will be further described through specific embodiments in conjunction with the accompanying drawings.
[0014] Such as figure 1 As shown, the present invention provides a complete system for embedding optical fiber grating sensors in electromagnetic wires. It consists of a pay-off device 1, a fiber pay-off wheel 3, an oiler 4, a guide device 5, a paper wrapping device 6, a traction device 7, The take-up device 8 is composed of a support 10, and the pay-off wheel 3, the oiler 4 and the guide device 5 are fixed on the support 10 in sequence.
[0015] The pay-off device 1 has two upper and lower pay-off reels, the upper ...
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A making method for pre-embedding a fiber grating sensor in a magnetic wire, includes: employing a magnetic wire (9) with a slot; enabling the fiber grating sensor (2) to pass through a fiber payingoff wheel (3); and enabling the fiber grating sensor (2) and the magnetic wire (9) with the slot to enter into an oil injection device(4) and to pass through a guide device (5) together, so as to position the fiber grating sensor (2) in the slot of the magnetic wire; then carrying out insulation paper lapping and forming by a paper lapping device (6); conveying the formed product to a wire takeup device (8) through a traction device (7); finally obtaining the magnetic wire pre-embedded with the fiber grating sensor (2). An integrated system for pre-embedding a fiber grating sensor in a magnetic wire is also provided. The making method and the integrated system for pre-embedding the fiber grating sensor in the magnetic wire have the advantages of simple preparation process and excellent pre-embedding effect. The magnetic wire pre-embedded with the fiber grating sensor has favorable temperature sensing property and is not influenced by stress. By connecting a plurality of fiber grating sensors to a single optical fiber in series and forming a quasi-distributed sensing network by the use of a multiplexing technology, the direct measurement of temperature inside the magnetic wire is realized.
Description
technical field [0001] The present invention relates to the field of optical fiber grating sensing and the field of transformer state monitoring, in particular to a manufacturing method and a complete system for embedding optical fiber grating sensors in electromagnetic wires, and the optical fiber grating sensors embedded in electromagnetic wires are used for temperature measurement inside transformers . Background technique [0002] Fiber Bragg grating sensor has the advantages of anti-electromagnetic interference, high sensitivity, small size, easy to embed, and it is easy to realize single-fiber multi-point and multi-parameter quasi-distributed measurement by using multiplexing technology. provides new avenues. Invention patent ZL201010273400.1 ("A method and system for detecting internal temperature of transformer based on fiber Bragg grating") proposes a method and system for detecting internal temperature of transformer using fiber Bragg grating sensor, but does not ...
Claims
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IPC IPC(8): G01K11/32H01B13/00G01K11/3206
CPCH01F2027/406G01K11/3206
Inventor 伍志荣程林林日磊聂德鑫关庆华陈江波周建华郭涛徐秋元
Owner WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST