Naval Postgraduate School
Electrodynamic behavior of PMG-Delta
94Jun_Chang.pdf (13.02Mb)Abstract
The PMG-Delta experiment was launched on 26 June 1993 to test basic tether electrodynamic principles. The 500 m conducting tether deployed from the second stage of a Delta-rocket, and provided approx. 3 orbits of useful information. The tether was equipped at both ends with xenon hollow cathodes. With both cathodes operating, currents up to 0.3A could be driven in either direction. Plasma impedances outside the tether were as low as a few hundred ohms at peak current during daytime/perigee(200km). Large impedances (10-100 kohms) occurred at night/apogee(900km), or when cathode cycled off.
Collections
Related items
Showing items related by title, author, creator and subject.
-
VLF space transmitter
(1989-01);A practical operational system for communicating with submarines located at high latitudes, particularly those under the ice cap, is described. A 10-20-km dipole is deployed which utilized tether technology and which ... -
Space tether - radar data processing
(Monterey, California. Naval Postgraduate School, 1994-09);NASA conducted the Delta-PMG tethered satellite mission. It was conducted to verify the hollow cathode plasma source's ability to couple electric currents from each end of a long wire tether traversing the ambient low earth ... -
THE IMPACT OF TECHNOLOGIES AND MISSIONS ON CONTINGENCY BASE FUEL CONSUMPTION
(Monterey, CA; Naval Postgraduate School, 2018-06);Fossil fuels satisfy the bulk of the U.S. military's energy requirements for transportation and sustainment needs. In recent years, deployments to Operation Enduring Freedom (OEF), Operation Iraqi Freedom (OIF), and Operation ...
