Cable Driver Techniques and Hardware Developed During the Pershing Cable/Connector Program

摘要

Cable Driver Testing is a technique widely used in the evaluation of the shielding effectiveness of exterior cable shields. The cable driver is used to create a current on the exterior shield of the cable. Then, by comparing the ratio of the internal current to the external current with the current ratios obtained from other cables or test conditions the relative shielding characteristics of a particular cable can be determied. In order to complete the Pershing cable/connector program, new cable driver techniques and hardware had to be developed including a portable driver which could be used to test fielded cables. The electrical characteristics and general design of all the drivers covered in the report are very similar. However, due to the physical differences in the test items and different sensitivity and resolution requirements in the instrumentation, no one driver setup could be used for all tests. Also, there was a natural refinement of the testing techniques as the program progressed. These modifications and improvements in the cable driver testing technique are described in the report. (Author)