Sensing optical cable manufacturing method
A manufacturing method and technology for sensing optical cables, which are applied in the field of optical cables, can solve the problems that the strength and fire resistance of the optical sensing cables need to be improved, and achieve the effects of good temperature sensing capability, fast and efficient transmission, and improvement of overall strength and pressure resistance.
Active Publication Date: 2017-09-01
德阳汇川科技有限公司
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[0003] The purpose of the present invention is to provide a method for manufacturing a sensing optical cable to solve the problem that the strength and fireproof performance of the sensing optical cable need to be improved in the prior art, and to achieve the purpose of improving the strength and fireproofing performance of the sensing optical cable
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Embodiment 1
[0031] Such as figure 1 and figure 2A method for manufacturing a sensing optical cable shown, comprising the following steps: (a) coating an optical fiber coating material on the surface of an optical fiber formed by drawing from a preform, and curing it to obtain a finished optical fiber; (b) coating the optical fiber surface obtained by Extrude a layer of polyimide material on the surface of the finished product through an extruder; (c) pre-bend the sheet-like metal strip to make the metal strip into a tubular structure, and penetrate the optical fiber obtained in step (b) during the pre-bending process (d) welding the gap between the two sides of the obtained tubular metal strip by laser welding to obtain a metal tube with a built-in optical fiber; (e) stretching the metal tube through a wire drawing die so that the inner diameter of the metal tube is less than or equal to the step The outer diameter of the optical fiber obtained in (b) to obtain an optical cable. The op...
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The invention discloses a sensing optical cable manufacturing method. The method comprises the steps that (a) an optical fiber coating material is coated on the surface of an optical fiber formed by drawing a preform rod, and solidifying is carried out to acquire an optical fiber finished product; (b) a layer of polyimide material is extruded by an extruder on the surface of the acquired optical fiber finished product; (c) a flaky metal strip is pre-bent to form a tubular structure, and the optical fiber acquired in the step (b) is penetrated during the pre-bending process; (d) a gap between two sides of the acquired tubular metal strip is welded by laser welding to acquire a metal tube with an optical fiber inserted therein; and (e) the metal tube is stretched by a drawing die, so that the inner diameter of the metal tube is equal to or less than the outer diameter of optical fiber acquired in the step (b) to acquire an optical cable. According to the invention, the sensing optical cable manufacturing method is provided; the problem that the strength and the fireproof performance of a sensing optical cable in the prior art are to be improved is solved; and the strength and the fireproof performance of the sensing optical cable are improved.
Description
technical field [0001] The invention relates to the field of optical cables, in particular to a method for manufacturing a sensing optical cable. Background technique [0002] In any optical cable structure, the core is the transmission medium for its optical signal. It is known that the fiber core is sensitive to temperature and stress, and special instruments can sense changes in temperature, pressure, stress, and sound waves based on changes in optical signals, which is called fiber optic sensing technology. Optical fiber sensing has many excellent properties, such as: anti-electromagnetic and atomic radiation interference performance; insulation, non-inductive electrical properties; water resistance, corrosion resistance chemical properties, etc. The existing sensing fiber cores are covered in loose tubes to form optical cables. Since the existing loose tubes are made of plastics such as PBT, PP or PE, the strength and fire resistance of the existing sensing optical cab...
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Login to View More IPC IPC(8): G02B6/44
CPCG02B6/4479G02B6/4488
Inventor 黎明陈鹏纪晓春陈曲王逵
Owner 德阳汇川科技有限公司