RF Coaxial Connection Resistance Check
Time of issue:
2016-03-05 14:25
Source:
Real contact resistance should consist of the following parts;
1) conductor resistance
Practical when measuring the contact resistance of electrical connector contacts, were contacts leads to the side, so the actual measurement of contact resistance also contains the contact surface contact and leads to resistance of the wire itself. Conductor resistance depends on the conductivity of the metal itself, its relationship to ambient temperature temperature coefficient can be used to characterize.
2) centralized resistance
When the current through the contact surface, due to the current linear shrinkage (or concentrated) showed resistance. To focus its called resistance or shrink resistance.
3) film resistors
Due to the contact surface coating and other pollutants that form the membrane resistance. From the analysis of contact surface; contaminated film on the surface can be divided into a solid layer and looser layer of contamination. Specifically, also called the interface resistance membrane resistance.
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