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    Crew Quarters (CQ) and Electromagnetic Interference (EMI) Measurement Facility Combined Impedance Study (2011)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: This report documents an investigation into observed failures associated with conducted susceptibility testing of Crew Quarters (CQ) hardware in the Johnson Space Center (JSC) Electromagnetic Interference (EMI) Measurement Facility, and the work accomplished to identify the source of the observed behavior. Investigation led to the conclusion that the hardware power input impedance was interacting with the facility power impedance leading to instability at the observed frequencies of susceptibility. Testing performed in other facilities did not show this same behavior, pointing back to the EMI Measurement Facility power as the potential root cause. A LISN emulating the Station power bus impedance was inserted into the power circuit, and the susceptibility was eliminated from the measurements.
    Keywords: Electronics and Electrical Engineering
    Type: JSC-CN-23221 , 2011 IEEE International Symposium on Electromagnetic Compatibility; Aug 14, 2011 - Aug 19, 2011; Long Beach, CA; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    Electromagnetic Interference/Compatibility (EMI/EMC) Control Test and Measurement Facility: User Test Planning Guide (2011)
    In:  CASI
    Details
    Publication Date: 2019-07-12
    Description: Test process, milestones and inputs are unknowns to first-time users of the EMI/EMC Test Facility. The User Test Planning Guide aids in establishing expectations for both NASA and non-NASA facility customers. The potential audience for this guide includes both internal and commercial spaceflight hardware/software developers. It is intended to assist their test engineering personnel in test planning and execution. Material covered includes a roadmap of the test process, roles and responsibilities of facility and user, major milestones, facility capabilities, and inputs required by the facility. Samples of deliverables, test article interfaces, and inputs necessary to define test scope, cost, and schedule are included as an appendix to the guide.
    Keywords: Electronics and Electrical Engineering
    Type: JSC-CN-24742
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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