Special type low-noise cable for sensor
A low-noise, sensor technology, applied in the direction of insulated cables, flexible cables, cables, etc., can solve the problems of transmission signal distortion, sensor cables that do not have the function of suppressing mechanical noise, and radiation resistance
Active Publication Date: 2012-11-21
天津六0九电缆有限公司
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Problems solved by technology
[0002] Ordinary sensor cables generally do not have the functions of suppressing mechanical noise and radiation resistance, which is not conducive to use in environments with high noise and high radiation, and the transmission signal is easily distorted by external interference
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[0007] like figure 1 , 2 As shown, a special low-noise cable for sensors, including an inner conductor 1-1 wrapped around the first layer of sound-absorbing layer 1-2, and the first layer of insulation 1-2 is sequentially extruded outside the first layer of sound-absorbing layer 1-2 3. The second layer of insulation 1-4, the second layer of sound-absorbing layer 1-5 is wrapped around the second layer of insulation 1-4 to form an insulated wire core 1, which also includes the third layer of sound-absorbing layer 2, shielding layer 3 and sheath 4. The two insulated wire cores 1 are twisted, and the third layer of sound-absorbing layer 2 is wrapped around it, a braided layer of silver-plated copper wire 3 is braided, and a sheath 4 is extruded. The inner conductor 1-1 is made of silver-plated copper conductor, the first sound-absorbing layer 1-2, the second sound-absorbing layer 1-5, and the third sound-absorbing layer 2 are made of graphite. The first layer of insulation 1-3, ...
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The invention relates to a special type low-noise cable for signal transmission of a sensor under the environment of larger noise and higher electromagnetic radiation of an engine and the like. In the special type low-noise cable, a first sound absorbing layer is wrapped outside an inner conductor; a first insulation layer and a second insulation layer are extruded out of the first sound absorbing layer sequentially; a second sound absorbing layer is wrapped outside the second insulation layer to form insulation wire cores; the two insulation wire cores are stranded; and a third sound absorbing layer, a weaving shielding layer and an extrusion sheath are wrapped outside the insulation wire cores sequentially. The special type low-noise cable is characterized in that: the sound absorbing layers are provided with graphite belts, and are wrapped by the graphite belts firmly to reduce gaps between the insulation layers and metal, so that the structure is more stable; the insulation layersare made of crosslinking ethylene-tetrafluoroethylene copolymers; a lamella extrusion process is adopted to ensure high electric insulation performance and relieve weight; a dual-layer extrusion modeis adopted to improve shear resistance, and the cable can meet the requirement of electric properties of impedance, capacitance, attenuation and the like; and the sheath is made of the crosslinking ethylene-tetrafluoroethylene copolymers, and is high in radiating resistance, high and low temperature resistance, flame retardance and chemical resistance.
Description
technical field [0001] The invention relates to a cable, in particular to a special low-noise cable for sensors, which is suitable for the transmission of sensor signals in environments with high noise and strong electromagnetic radiation such as engines, and prevents external mechanical noise from interfering with the transmission of sensor signals. Background technique [0002] Ordinary sensor cables generally do not have the functions of suppressing mechanical noise and radiation resistance, which is not conducive to use in environments with high noise and high radiation, and the transmission signal is easily distorted by external interference. Contents of the invention [0003] In view of the shortcomings of the existing technology, the present invention provides a special low-noise cable for sensors with the characteristics of high and low temperature resistance, low noise, light weight, radiation resistance, small size, good chemical resistance, and softness. [0004...
Claims
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IPC IPC(8): H01B7/04H01B7/02H01B7/17H01B1/02H01B5/12
Inventor 李津津韦玮毕建金李素红陈芳伟夏云怀于健柳剑王玉芳
Owner 天津六0九电缆有限公司