Marshall Technical Reports Server

Comparison of Commercial Electromagnetic Interference Test Techniques to NASA Electromagnetic Interference Test Techniques

NASA/CR-210400, Smith, V., Comparison of Commercial Electromagnetic Interference Test Techniques to NASA Electromagnetic Interference Test Techniques , George C. Marshall Space Flight Center Marshall Space Flight Center, AL 35812, R&B Operations IIT Research Institute, 20 Clipper Road, West Conshohocken, PA 194282721, Technical Monitor: J.L. Minor / ED03, Prepared for NASAs Space Environments and Effects, November, 2000, pp. 70, Format(s): PDF 77429k

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This report documents the development of analytical techniques required for interpreting and comparing space systems electromagnetic interference test data with commercial electromagnetic interference test data using NASA Specification SSP 30237A "Space Systems Electromagnetic Emission and Susceptibility Requirements for Electromagnetic Compatibility". The PSpice computer simulation results and the laboratory measurements for the test setups under study compare well. The study results, however, indicate that the transfer function required to translate test results of one setup to another is highly dependent on cables and their actual layout in the test setup. Since cables are equipment specific and are not specified in the test standards, developing a transfer function that would cover all cable types (random, twisted, or coaxial), sizes (gauge number and length), and layouts (distance from the ground plane) is not practical.
Keywords:emi, emc, test standards, comparison, space systems, commercial, cots equipment
Subjects:Space Sciences: Space Sciences (General)
ID Code:540
Deposited On:24 July 2002