The shielding layer material of shielded cables: a secret weapon to enhance the anti-interference ability of electrical signals

Introduction: In modern society, cables have become an indispensable part of our lives. We use cables to transmit information and power, but during the transmission process, cables often experience interference, resulting in a decrease in the quality of information transmission. To solve this problem, scientists have developedshielded cableAnd various shielding layer materials were used.Advanced Institute of TechnologyThis article will explore the shielding layer material of shielded cables and its role in enhancing the anti-interference ability of electrical signals.

1. Metal shielding layer: unparalleled electromagnetic shielding effect

As one of the most commonly used shielding materials, metal shielding layer has good electromagnetic shielding effect. By using a metal shielding layer, it is possible to effectively prevent interference from external electromagnetic fields and protect the transmission quality of electrical signals. Different metal materials have varying effects on electromagnetic shielding, such as aluminum, copper, tin, and other materials. Aluminum, as a commonly used metal shielding layer material, has good conductivity and low cost, and is widely used in the field of cable manufacturing.

After years of research and development, a certain technology company has successfully developed a product made of high-purity aluminum materialmetal shielding layerThe shielding layer not only has excellent electromagnetic shielding effect, but also has low resistance and good oxidation resistance, greatly improving the anti-interference ability of electrical signals and receiving high praise from the market.

2. Polymer shielding layer: lightweight and effective signal protection armor

In addition to metal shielding layers, polymer shielding layers are also widely used in shielded cables. The polymer shielding layer has the characteristics of lightness, flexibility, and corrosion resistance, which can effectively isolate electromagnetic waves between the interior of the cable and the external environment. In addition, polymer materials have excellent mechanical strength and wear resistance, which can protect internal wires and extend the service life of cables during the manufacturing process.

The latest developed polytetrafluoroethylene (PTFE) material is widely used in the manufacturing of shielded cables. PTFE material has low loss, low dielectric constant, and good insulation performance, which can provide better electrical signal transmission quality. In addition, PTFE material also has good high temperature resistance and can maintain good electrical signal anti-interference ability under harsh environmental conditions.

3. Composite shielding layer: Strong collaboration to jointly resist the challenge of interference

In addition to single metal shielding layer and polymer shielding layer, composite shielding layer has also become one of the common shielding layer materials in shielded cables. The composite shielding layer combines the advantages of metal shielding layer and polymer shielding layer. The metal shielding layer can provide strong electromagnetic shielding effect, while the polymer shielding layer can provide the function of protecting wires and insulation.

A cable company has developed a high-performance shielded cable with a composite shielding layer. This cable usesAluminum metal shielding layerCombined with PTFE polymer shielding layer, the advantages of both are fully utilized. Not only does it possess excellent electromagnetic shielding capabilities, but it also has the characteristics of lightness, corrosion resistance, and wear resistance, and is widely used in fields such as aerospace, communication, and power.

Summary: The shielding layer material of shielded cables plays an important role in improving the anti-interference ability of electrical signals. The metal shielding layer has unparalleled electromagnetic shielding effect, the polymer shielding layer is lightweight and effective, and the composite shielding layer fully utilizes the advantages of both materials. In the future, with the continuous development of science and technology, the shielding layer materials of shielded cables will become more diversified, providing more efficient signal protection capabilities and better support for our communication and power transmission.