What is it about?
Labels used to identify connectors, instruments, and orientations simplify spacecraft integration, but they may accumulate charge resulting in distorted electric fields and possible discharges. Even static dissipative labels may use adhesives that electrically isolate the label exposed surface.
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Why is it important?
Surface charging can lead to arcing or electric fields that interfere with spacecraft operations.
Perspectives
This effect was observed while calibrating an electrostatic analyzer (ESA) in an electron beam. Energies below a few hundred eV were deflected away from connector labels that were near the inlet aperture of the ESA
John McGarity
Assurance Technology Corporation
Read the Original
This page is a summary of: Electrostatic Charging of Static Dissipative Polyimide Labels, Journal of Spacecraft and Rockets, November 2016, American Institute of Aeronautics and Astronautics (AIAA),
DOI: 10.2514/1.a33670.
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