Instrumentation Cable Suppliers

What is the effect of the conductor twisting process of shielded instrumentation cable on its signal transmission stability? ​

Basic principle of conductor twisting process​
The conductor twisting of shielded instrumentation cable is to twist multiple single-strand conductors according to specific rules and methods to form a conductor structure with specific properties. This process is not a simple physical combination, but contains the comprehensive application of multidisciplinary knowledge such as electromagnetics and material mechanics. Different twisting methods, such as regular twisting and bundle twisting, will form different conductor structure forms. We have 480 sets of various modern production equipment. These advanced equipment can accurately control various parameters in the twisting process to ensure the realization of different twisting processes. ​
The effect of twisting pitch on signal transmission stability​
The twisting pitch, that is, the axial distance that the conductor moves forward when it rotates around the axis when twisted, is one of the key parameters in the conductor twisting process. A smaller twisting pitch can make the contact between the conductors closer and effectively reduce the loop inductance of the conductor. In the process of high-frequency signal transmission, the reduction of loop inductance can reduce signal loss and distortion, thereby improving the stability of signal transmission. When producing twisted pair instrumentation cables, Yangzhou Yaguang Cable Co., Ltd., with its rich production experience and strict quality control, can accurately control the twisting pitch according to different application scenarios and signal transmission requirements. For example, in the production of shielded instrumentation cables used in high-precision automation control systems, the twisting pitch is accurately set to ensure that the signal can maintain a high degree of stability during transmission and meet the system's stringent requirements for signal transmission accuracy. ​
However, the twisting pitch is not the smaller the better. When the twisting pitch is too small, the flexibility of the conductor will be affected. During the laying and use of the cable, excessive bending may cause the conductor to break or have poor contact, which will have a negative impact on the stability of signal transmission. Therefore, in actual production, it is necessary to reasonably balance the relationship between the twisting pitch and the flexibility of the cable while ensuring the signal transmission performance. With its in-depth research and practical experience in conductor twisting technology, Yaguang Cable can accurately grasp this balance point and produce shielded instrumentation cables with excellent performance.​
Correlation between twisting direction and signal transmission stability​
The twisting direction of the conductor is divided into left-hand twisting and right-hand twisting. Different twisting directions will affect the signal transmission stability of the shielded instrument cable. In practical applications, when the cable is in a complex electromagnetic environment, the twisting direction will affect the electromagnetic field distribution around the conductor. A reasonable twisting direction can enable the conductor to form a relatively balanced electromagnetic field after twisting, reduce the interference signal generated by electromagnetic coupling, and thus improve the stability of signal transmission. During the production process, Yaguang Cable will scientifically select the twisting direction according to the specific use scenario and electromagnetic environment characteristics of the cable. For example, in some industrial environments with strong electromagnetic interference, the twisting direction can be carefully designed to effectively reduce the impact of external electromagnetic interference on cable signal transmission, ensuring that the signal can be transmitted stably and accurately. ​
In addition, in a multi-layer twisted conductor structure, the matching of the twisting directions of adjacent layers is also crucial. The correct twisting direction can further optimize the electromagnetic field distribution of the conductor and enhance the anti-interference ability of the cable. In our long-term production practice, we have accumulated rich experience in twisting direction design. We can formulate the best twisting direction scheme according to different product requirements, and provide strong guarantee for the signal transmission stability of shielded instrument cables. ​
The effect of twisting density on signal transmission​
The twisting density is directly related to the contact resistance between conductors. When the conductors are tightly twisted, the contact area between the conductors increases and the contact resistance decreases, which is conducive to reducing the energy loss of the signal during transmission and improving the efficiency and stability of signal transmission. With advanced production equipment and strict process control, Yaguang Cable can accurately control the twisting density of the conductors. During the production process, through real-time monitoring and adjustment, it is ensured that the conductor twisting density of each shielded instrument cable meets high standards, thereby effectively reducing the energy loss during signal transmission and ensuring the stable transmission of the signal. ​
On the contrary, if the twisting density is insufficient, the conductors are prone to looseness. When the cable is subjected to external forces such as vibration and bending, the contact state between the conductors may change, resulting in unstable contact resistance, which in turn causes fluctuations in signal transmission and affects the stability of signal transmission. Yaguang Cable will strictly inspect the conductor's twisting tightness during the quality inspection process, using advanced testing equipment and scientific testing methods to ensure that each factory-produced shielded instrument cable has good twisting tightness, laying a solid foundation for the stability of signal transmission. ​
Twisting process improves the comprehensive performance of shielded instrument cables​
In addition to the above factors that directly affect the stability of signal transmission, a reasonable conductor twisting process can also have a positive impact on the comprehensive performance of shielded instrument cables. A good twisting process can enable the cable to have better mechanical properties while ensuring signal transmission performance, enhance the cable's tensile and bending resistance, and extend the cable's service life.