A miniature sensor for electrical field measurements in dusty planetary atmospheres

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dc.contributor.author Renno, Nilton O. en_US
dc.contributor.author Kok, J. F. en_US
dc.contributor.author Kirkham, H. en_US
dc.contributor.author Rogacki, S. en_US
dc.date.accessioned 2009-10-08T15:34:09Z
dc.date.available 2009-10-08T15:34:09Z
dc.date.issued 2008 en_US
dc.identifier.citation Renno, N O; Kok, J F; Kirkham, H; Rogacki, S (2008). "A miniature sensor for electrical field measurements in dusty planetary atmospheres." Journal of Physics: Conference Series 142():012075 (6pp). <http://hdl.handle.net/2027.42/64202> en_US
dc.identifier.issn 1742-6596 en_US
dc.identifier.uri http://hdl.handle.net/2027.42/64202
dc.description.abstract "Dusty phenomena such as regular wind-blown dust, dust storms, and dust devils are the most important, currently active, geological processes on Mars. Electric fields larger than 100 kV/m have been measured in terrestrial dusty phenomena. Theoretical calculations predict that, close to the surface, the bulk electric fields in martian dusty phenomena reach the breakdown value of the isolating properties of thin martian air of about a few 10 kV/m. The fact that martian dusty phenomena are electrically active has important implications for dust lifting and atmospheric chemistry. Electric field sensors are usually grounded and distort the electric fields in their vicinity. Grounded sensors also produce large errors when subject to ion currents or impacts from clouds of charged particles. Moreover, they are incapable of providing information about the direction of the electric field, an important quantity. Finally, typical sensors with more than 10 cm of diameter are not capable of measuring electric fields at distances as small as a few cm from the surface. Measurements this close to the surface are necessary for studies of the effects of electric fields on dust lifting. To overcome these shortcomings, we developed the miniature electric-field sensor described in this article." en_US
dc.format.extent 799080 bytes
dc.format.extent 3118 bytes
dc.format.mimetype application/pdf
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dc.title A miniature sensor for electrical field measurements in dusty planetary atmospheres en_US
dc.subject.hlbtoplevel Science en_US
dc.description.bitstreamurl http://deepblue.lib.umich.edu/bitstream/2027.42/64202/1/jpconf8_142_012075.pdf
dc.identifier.doi http://dx.doi.org/10.1088/1742-6596/142/1/012075 en_US
dc.identifier.source Journal of Physics: Conference Series en_US
dc.owningcollname Interdisciplinary and Peer-Reviewed
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