Cable Transfer Impedance. The transfer impedance also known as the coupling resistance is a dimension dependent measured variablefor the shielding effect of shielded electrical lines. Finite transfer impedance of cables creates errors in si and pi measurements.
Transfer impedance as a measure of the shielding quality of shielded cables and connectors 2004 all rights reserved. The transfer impedance has the dimensionω m and is used in high frequency technologyand in electromagnetic compatibilityemc for example for. The only restrictions of its use concern practical tests performed on shielded cables with high electromagnetic immunity.
Experimentally the transfer impedance of electrically short.
The following formula will hold truth. Transfer impedance is the quantity most commonly used to describe shield effectiveness 23. The coax impedance is one of the major specifications associated with any piece of coax cable. Haviour of hv cables.