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Demonstration of electric micropropulsion multimodality
Electric propulsion has become popular nowadays owing to the trend of miniaturizing the size and mass of satellites. However, the main drawback of the most popular approach—Hall thrusters—is that their efficiency and thrust-to-power ratio (TPR) markedly deteriorate when its size and power level are...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Association for the Advancement of Science
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9451150/ https://www.ncbi.nlm.nih.gov/pubmed/36070382 http://dx.doi.org/10.1126/sciadv.adc9850 |
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author | Zolotukhin, Denis B. Bandaru, Siva Ram Prasad Daniels, Keir P. Beilis, Isak I. Keidar, Michael |
author_facet | Zolotukhin, Denis B. Bandaru, Siva Ram Prasad Daniels, Keir P. Beilis, Isak I. Keidar, Michael |
author_sort | Zolotukhin, Denis B. |
collection | PubMed |
description | Electric propulsion has become popular nowadays owing to the trend of miniaturizing the size and mass of satellites. However, the main drawback of the most popular approach—Hall thrusters—is that their efficiency and thrust-to-power ratio (TPR) markedly deteriorate when its size and power level are reduced. Here, we demonstrate an alternative approach—a minute low-power (<50 W), lightweight (~100 g), two-stage propulsion system. The system is based on a micro-cathode vacuum arc thruster with magnetoplasmadynamic second stage (μCAT-MPD), which achieves the following parameters: a thrust of up to 1.7 mN at a TPR of 37 μN/W and an efficiency of ~50%. A μCAT-MPD system, in addition to “traditional” inverse, displays the anomalous direct (growing) “TPR versus specific impulse I(sp)” trend at high I(sp) values and allows multimodality at high efficiency. |
format | Online Article Text |
id | pubmed-9451150 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | American Association for the Advancement of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-94511502022-09-29 Demonstration of electric micropropulsion multimodality Zolotukhin, Denis B. Bandaru, Siva Ram Prasad Daniels, Keir P. Beilis, Isak I. Keidar, Michael Sci Adv Physical and Materials Sciences Electric propulsion has become popular nowadays owing to the trend of miniaturizing the size and mass of satellites. However, the main drawback of the most popular approach—Hall thrusters—is that their efficiency and thrust-to-power ratio (TPR) markedly deteriorate when its size and power level are reduced. Here, we demonstrate an alternative approach—a minute low-power (<50 W), lightweight (~100 g), two-stage propulsion system. The system is based on a micro-cathode vacuum arc thruster with magnetoplasmadynamic second stage (μCAT-MPD), which achieves the following parameters: a thrust of up to 1.7 mN at a TPR of 37 μN/W and an efficiency of ~50%. A μCAT-MPD system, in addition to “traditional” inverse, displays the anomalous direct (growing) “TPR versus specific impulse I(sp)” trend at high I(sp) values and allows multimodality at high efficiency. American Association for the Advancement of Science 2022-09-07 /pmc/articles/PMC9451150/ /pubmed/36070382 http://dx.doi.org/10.1126/sciadv.adc9850 Text en Copyright © 2022 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY). https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Physical and Materials Sciences Zolotukhin, Denis B. Bandaru, Siva Ram Prasad Daniels, Keir P. Beilis, Isak I. Keidar, Michael Demonstration of electric micropropulsion multimodality |
title | Demonstration of electric micropropulsion multimodality |
title_full | Demonstration of electric micropropulsion multimodality |
title_fullStr | Demonstration of electric micropropulsion multimodality |
title_full_unstemmed | Demonstration of electric micropropulsion multimodality |
title_short | Demonstration of electric micropropulsion multimodality |
title_sort | demonstration of electric micropropulsion multimodality |
topic | Physical and Materials Sciences |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9451150/ https://www.ncbi.nlm.nih.gov/pubmed/36070382 http://dx.doi.org/10.1126/sciadv.adc9850 |
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