Transfer impedance ve Shielding attenuation Texts

Transfer Impedance and Screening Weakening Test
Transfer Impedance and Screening Weakening Test

Given the location of electrical cables, it is extremely important that they are resistant to a possible risk. Therefore, different tests are performed on the cables in order to obtain the most accurate durability result. Accredited laboratories from national or international accreditation organizations also provide transfer impedance and shielding attenuation testing services within the scope of electrical tests. The type, length and cross-section of the cable to which the tests are applied are very important at this point.

In physics, it is always aimed to transfer the power produced with the highest efficiency, that is, the highest power transfer. For the highest power transfer in electronic circuits, the load impedance must be adjusted according to the source. This is called impedance suitability in physics.

The transfer impedance is used to measure the effect of protection against the input and output of unwanted signals over the cable.

In many systems, including sound systems used in daily life, the cables are exposed to electromagnetic fields. This field, called electromagnetic interference (EMI), leads to distortion of the signal passing through the cable and causing the systems to malfunction. With shielding, cables, circuits or devices are electromagnetically isolated. The quality of the shielding varies depending on the type of source to be shielded and the quality of the shielding elements.

Transfer impedance and shielding attenuation tests are also performed by laboratories in the framework of electrical tests. The standards developed by domestic and foreign organizations are taken into consideration during these tests. Typically, 1 is used for transfer impedance and 3 is used for screening attenuation and measurements are made at different frequency ranges.

Shielding of conductors is important in many ways. For example, the physical durability of the cables used is increased. Electromagnetic interference (EMI) is prevented from disturbing the signal in the cable. Communication over the cable is made in a safe and high quality. By preventing different formations on the cable, the equipment used is prevented from being damaged.