Physics
Scientific paper
Nov 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aps..ses.kc009m&link_type=abstract
American Physical Society, 67th Annual Meeting of the APS Southeastern Section November 2 - 4, 2000 Mississippi State University
Physics
Scientific paper
We have investigated the simultaneous triboelectric charging of five types of insulating materials under identical conditions using frictional contact with Martian soil simulant (JSC Mars-1). The insulators studied were fiberglass/epoxy, polycarbonate, teflon, Rulon J, and polymethylmethacrylate. The amount of electric charge that developed on each insulator's surface was measured simultaneously by five independent electrometer circuits contained in the Mars Environmental Compatibility Assessment (MECA) electrometer. This is a flight instrument designed at JPL and NASA Kennedy Space Center for a future robotic lander mission of the Martian surface. We will describe the proposed robotic operation of the MECA electrometer on Mars, and will present data that was taken with the electrometer at NASA KSC using Martian soil simulant at room temperature inside a vacuum chamber containing a CO2 atmosphere at a pressure of 7 Torr.
Buehler Martin G.
Calle Carlos I.
Groop E. E.
Mantovani James G.
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