Výsledky vyhledávání - "Espen Trondsen"

Multi-Needle Langmuir Probe System for Electron Density Measurements and Active Spacecraft Potential Control on CubeSats

Autor: Espen Trondsen, Arne Pedersen, Torfinn Lindem, Joran Moen, Espen Sorlie Helgeby, T. A. Bekkeng

Publikováno v: IEEE Transactions on Aerospace and Electronic Systems. 55:2951-2964

In this paper, we present the CubeSat version of a scientific instrument called the multi-Needle Langmuir Probe (m-NLP). The m-NLP instrument measures the electron density in the ionosphere with kHz sampling rate, yielding meter scale resolution on l

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::237eaea319821e045bea3aeadb50458c
https://doi.org/10.1109/taes.2019.2900132

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Multineedle Langmuir Probe Operation and Acute Probe Current Susceptibility to Spacecraft Potential

Autor: Ketil Røed, Lasse Boy Novock Clausen, Huy Minh Hoang, Bjørn Lybekk, Lei Yang, Andres Spicher, Espen Trondsen, Magnus Fagernes Ivarsen, Yaqi Jin, Joran Moen

Publikováno v: IEEE Transactions on Plasma Science. 47:3816-3823

NorSat-1 was launched on July 14, 2017 as a satellite carrying, among other instruments, the multineedle Langmuir probe (m-NLP), an instrument which, on NorSat-1, is capable of measuring the ionospheric plasma electron density with the high sampling

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a26ea179803afc37fc55f967227b14a5
https://doi.org/10.1109/tps.2019.2906377

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The Experimental Albertan Satellite #1 (Ex-Alta 1) Cube-Satellite Mission

Publikováno v: Space Science Reviews. 216

The Experimental Albertan satellite #1 (Ex-Alta 1) was a three-unit cube satellite (CubeSat) developed at the University of Alberta (UAlberta). As the first ‘made in Alberta’ spacecraft, the Ex-Alta 1 CubeSat was the Canadian contribution to the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d87ff5900bb71bebdb36442405c143c
https://doi.org/10.1007/s11214-020-00720-8

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Shock aurora: Field‐aligned discrete structures moving along the dawnside oval

Autor: Gerhard Haerendel, Lasse Boy Novock Clausen, Espen Trondsen, Joran Moen, Robert J. Strangeway, Dag Arne Lorentzen, Xiaoyan Zhou, Bjørn Lybekk

Publikováno v: Journal of Geophysical Research: Space Physics. 122:3145-3162

Generated by interplanetary shocks or solar wind pressure pulses, shock aurora has transient, global, and dynamic significances and provides a direct manifestation of the solar wind‐magnetosphere‐ionosphere interaction. As a part of a series of s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7cf06d5f149ef7cd0a9ad0bf12709786
https://doi.org/10.1002/2016ja022666

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The Multi-needle Langmuir Probe Instrument for QB50 Mission: Case Studies of Ex-Alta 1 and Hoopoe Satellites

Autor: Meir Ariel, Joran Moen, Bjørn Lybekk, David Michael Bang-Hauge, Charles Cupido, Ian R. Mann, Lasse Boy Novock Clausen, Huy Minh Hoang, Daniel Portnoy, Espen Trondsen, T. A. Bekkeng, Elad Sagi, Halvor Strøm, Charles Nokes, Ketil Røed, Arne Pedersen

The QB50 mission is a satellite constellation designed to carry out measurements at between 200–380 km altitude in the ionosphere. The multi-needle Langmuir probe (m-NLP) instrument has been mounted on board eleven QB50 satellites in order to chara

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::57f5287c48ec6f797fe26b21f223732c
http://hdl.handle.net/10852/76690

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Auroral all-sky camera calibration

Autor: S. A. Chernouss, Urban Brandstrom, D. A. Lorentzen, S. E. Holmen, Drummond Biles, Charles Deehr, Bjørn Lybekk, Xiangcai Chen, Fred Sigernes, Lisa Baddeley, H. Bjørklund, Espen Trondsen, Joran Moen, M. Dyrland, T. S. Trondsen

Publikováno v: Geoscientific Instrumentation, Methods and Data Systems, Vol 3, Iss 2, Pp 241-245 (2014)

A two-step procedure to calibrate the spectral sensitivity to visible light of auroral all-sky cameras is outlined. Center pixel response is obtained by the use of a Lambertian surface and a standard 45W tungsten lamp. Screen brightness is regulated

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9e38d4ac21ff8e03c0d52781d09cf2d
https://www.geosci-instrum-method-data-syst.net/3/241/2014/

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The Multi-Needle Langmuir Probe System on Board NorSat-1

Autor: T. A. Bekkeng, Ketil Røed, Joran Moen, Halvor Strøm, Lasse Boy Novock Clausen, Huy Minh Hoang, Espen Trondsen, Bjørn Lybekk, Andres Spicher, David Michael Bang-Hauge, Arne Pedersen

On July 14th, 2017, the first Norwegian scientific satellite NorSat-1 was launched into a high-inclination (98∘), low-Earth orbit (600 km altitude) from Baikonur, Kazakhstan. As part of the payload package, NorSat-1 carries the multi-needle Langmui

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::167adbb9b4f3c73b6d6e7fa0a83314cb
http://hdl.handle.net/10852/68381

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A study of data analysis techniques for the multi-needle Langmuir probe

Autor: Ketil Røed, Arne Pedersen, Joran Moen, Andres Spicher, T. A. Bekkeng, Lasse Boy Novock Clausen, Huy Minh Hoang, Wojciech Jacek Miloch, Espen Trondsen

Publikováno v: Measurement Science and Technology. 29:065906

In this paper we evaluate two data analysis techniques for the multi-needle Langmuir probe (m-NLP). The instrument uses several cylindrical Langmuir probes, which are positively biased with respect to the plasma potential in order to operate in the e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5d3a69fc359204f6f54baf3daa1ed24a
https://doi.org/10.1088/1361-6501/aab948

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