| Item type |
紀要論文 / Departmental Bulletin Paper(1) |
| 公開日 |
2015-03-26 |
| タイトル |
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|
タイトル |
電離層プラズマを用いた2つのRFプローブの比較実験 |
| 言語 |
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|
言語 |
jpn |
| 資源タイプ |
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|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
departmental bulletin paper |
| その他のタイトル（英） |
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その他のタイトル |
Comparative experiments of two type r. f. probes in the ionospheric plasma |
| 著者 |
南, 繁行
竹屋, 芳夫
MINAMI, Shigeyuki
TAKEYA, Yoshio
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| 著者所属 |
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|
|
大阪市大工学部 |
| 著者所属 |
|
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大阪市大工学部 |
| 出版者 |
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出版者 |
東京大学宇宙航空研究所 |
| 書誌情報 |
東京大学宇宙航空研究所報告
巻 13,
号 3_C,
p. 989-1001,
発行日 1977-10
|
| 抄録 |
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内容記述タイプ |
Abstract |
|
内容記述 |
新しく開発された改良型レゾナンスプローブを用いて電離圏E層の電子密度を測定した。この結果は,同時に搭載されたインピーダンスプローブと共に比較検討された.そして今迄のインピーダンスプローブのデータの測定結果はほぼ信頼できることと既にドップラー法との比較実験で指摘されているロケット電位の沈下による測定誤差の効果について確かめた.本論文では改良型レゾナンスプローブでの測定結果及びその特長について述べる. |
| 抄録（英） |
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内容記述タイプ |
Other |
|
内容記述 |
The resonance probe is a type of radio frequency probe, which was developed 15 years ago. At first, the relationship between resonance peak characteristics and the plasma parameter were studied. Actually electron density determination using the resonance probe is very difficult because sensitivity of anti-resonance dip which gives electron density, is very low, and usually it is masked by plasma noise and potential drift. The differential resonance probe which was developed in order to avoid these impediments, has two symmetrical floating probes. One acts as a single resonance probe, while the other one gives the reference floating potential of plasma. Using a differential amplifier, common mode noise is removed. In this paper, the properties of the differential resonance probe which show anti-resonance clearly are considered, together with the accuracy of the probe. At first, the theoretical approach of the resonance probe in magneto plasma is performed using plasma impedance theory at radio frequency. It is shown that anti-resonance frequency of the resonance probe is upper hybrid frequency, the same as in the impedance probe. Second, the experimental results are compered with theoretical caliculations. Comparision of properties of the differential resonance probe are performed using low temperature (about 0.1eV) and low density (10^4 -10^6el/cc) in space simulation chamber (diameter 2m, length 3m) using back diffusion type plasma source, and ionosheric plasma using sounding rocket. Experimental results show that electron density computed by the above two methodes agree with an error range of ± serveral percent in uniform plasma. Deviation of the results of electron density by impedance probe from the results of the resonance probe occue when the potential difference between plasma potential and potential of rocket body or probe supporter is large. The resonance probe has an insulated probe bottom to escape the sheath of the capacitance. This effect of apparent low density measured by the impedance probe is verified by laboratory experiments. |
| ISSN |
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|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0563-8100 |
| 書誌レコードID |
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収録物識別子タイプ |
NCID |
|
収録物識別子 |
AN00161914 |
| 資料番号 |
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内容記述タイプ |
Other |
|
内容記述 |
資料番号: SA0124802000 |
SA0124802.pdf (618.2 kB)
