|
|||||
|
|
The electric field instrument on the polar satellite |
|
| Authors: | P Harvey F S Mozer D Pankow J Wygant N C Maynard H Singer W Sullivan P B Anderson R Pfaff T Aggson A Pedersen C -G Fälthammar P Tanskannen |
| Institution: | (1) Space Sciences Laboratory, University of California, Berkeley, USA;(2) Phillips Laboratory, Geophysics Directorate/GPSG, Hanscom Air Force Base, USA;(3) Center for Space Physics, Boston University, MA, USA;(4) NASA Goddard Space Flight Center, Greenbelt, MD, USA;(5) European Space and Technology Center, Noordwijk, The Netherlands;(6) Royal Institute of Technology, Stockholm, Sweden;(7) University of Oulu, Oulu, Finland;(8) Present address: Physics Department, University of California, 94720 Berkeley, CA, USA;(9) Present address: Tate Laboratory of Physics, School of Physics and Astronomy, University of Minnesota, 116 Church Street, S.E., 55455 Minneapolis, MN, USA;(10) Present address: Mission Research Corporation, One Tara Blvd., Suite 302, 03062 Nashua, NH, USA;(11) Present address: NOAA R/E/SE, 325 Broadway, 80303 Boulder, CO, USA |
| Abstract: | The Polar satellite carries a system of four wire booms in the spacecraft spin plane and two rigid booms along the spin axis. Each of the booms has a spherical sensor at its tip along with nearby guard and stub surfaces whose potentials relative to that of their sphere are controlled by associated electronics. The potential differences between opposite sphere pairs are measured to yield the three components of the DC to >1 MHz electric field. Spheres can also be operated in a mode in which their collected current is measured to give information on the plasma density and its fluctuations. The scientific studies to be performed by this experiment as well as the mechanical and electrical properties of the detector system are described. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |