ELECTROMAGNETICALLY LEVITATED PROBE TO MEASURE SPACE POTENTIAL IN A ONE-DIMENSIONAL IONIC FLOW-FIELD

Authors
MATSUI M FUJIBAYASHI K MURASAKI N AKUTSU Y
Citation
M. Matsui et al., ELECTROMAGNETICALLY LEVITATED PROBE TO MEASURE SPACE POTENTIAL IN A ONE-DIMENSIONAL IONIC FLOW-FIELD, Journal of electrostatics, 42(1-2), 1997, pp. 113-122
Citations number
8
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
Journal of electrostatics → ACNP
ISSN journal
03043886
Volume
42
Issue
1-2
Year of publication
1997
Pages
113 - 122
Database
ISI
SICI code
0304-3886(1997)42:1-2<113:ELPTMS>2.0.ZU;2-U
Abstract
A new probe method for the measurement of space potential in ionic flo w field is described. This method avoids errors caused by distortion o f the electric field due to the probe supporter and its connecting cab le to an electrometer. Aluminum disk probes, with diameters of 267 or 274 mm respectively and a thickness of 3 mm, were levitated electromag netically at 15 mm above the ground electrode within an ionic now fiel d for 30 minutes or more. By applying spherical probe theory to the me asured values of the probe potential, the equivalent spherical radius of the probe has been estimated as 10-20 mm.