蘭摩爾探針脈衝響應電流估測及間隔時間最佳化演算法之模擬驗證

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姓名

紀佑融(YU-JUNG CHI) 查詢紙本館藏

畢業系所

光機電工程研究所

論文名稱

蘭摩爾探針脈衝響應電流估測及間隔時間最佳化演算法之模擬驗證
(Simulation verification of Langmuir-probe′s pulse response current estimation algorithm and it′s interval optimization algorithms)

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摘要(中)

本論文目的為改善傳統脈衝式蘭摩爾探針之汙染層問題，藉由數據模擬，研究探針上汙染層對電流量測的影響，開發演算法修正電流量測精準度並強化抗雜訊能力。為提高空間解析度，將以最少的脈衝數量量測I-V曲線，找出具代表性的掃描電壓點，推算電子溫度、濃度。最後，研究脈衝下降緣汙染層電容跨壓衰減的特徵，藉由演算法計算電容放電需時，以獲得最佳化脈衝間隔時間。

摘要(英)

The purpose of this paper is to improve the traditional pulsed langmuir probe. By data simulation, we studied the influence of the contamination layer on the probe, and develop an algorithm to correct the current measurement accuracy and enhance the anti-noise capability. In order to improve the spatial resolution, this paper attempts to measure the I-V curve with the minimum number of pulses, we find the representative scanning voltage point to calculate the electron temperature and density. Finally, we studied the characteristics of the contamination discharge curve, and develop an algorithm to calculate the capacitance discharge time and optimize the pulse interval time.

關鍵字(中)

★ 蘭摩爾探針
★ 汙染層
★ 電子溫度
★ 電子濃度

關鍵字(英)

★ langmuir probe
★ contamination
★ electron temperature
★ electron density

論文目次

論文摘要 I
Abstract II
致謝 III
圖目錄 VI
表目錄 VIII
一、緒論 1
1-1 研究目的與動機 1
1-1-1 研究目的 1
1-1-2 研究動機 1
1-2 研究構想 3
1-3 論文章節 3
二、理論及技術背景 4
2-1 理論基礎 4
2-1-1電漿 4
2-1-2德拜鞘 4
2-1-3蘭摩爾探針 5
2-2 技術背景 9
2-2-1電子溫度、濃度探測儀 9
三、實驗設計 10
3-1 受汙染蘭摩爾探針的PSPICE電路模型 10
3-2 理想脈衝響應電流估測演算法及驗證 11
3-2-1理想脈衝響應電流估測演算法 11
3-2-2演算法最佳參數驗證 14
3-2-3演算法效能驗證 23
3-2-4演算法電子溫度、濃度估算效能驗證 27
3-3 脈衝間隔最佳化演算法及驗證 38
3-3-1理想脈衝響應電流估測演算法 39
3-3-2演算法最佳參數驗證 40
3-3-3演算法效能驗證 51
3-3-4演算法提升空間解析度驗證實驗 56
第四章結論 58
4-1本文貢獻 58
4-2未來發展 58
參考文獻 59

參考文獻

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[17] K.-I. Oyama, Y. W. Hsu, G. S. Jiang, W. H. Chen, C. Z. Cheng, H. K. Fang, W. T. Liu"Electron temperature and density probe for small aeronomy satellites"(Received 26 January 2014; accepted 13 July 2015)
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[19] Gottfried Wehner, and Gustav Medicus,"Reliability of Probe Measurements in Hot Cathode Gas Diodes"(Received June 2, 1952)
[20] Hirao K and Oyama K 1972 A critical study on the reliability of electron temperature measurements with a Langmuir probe J. Geomagn. Geoelectr. 24 415–27
[21] M Shimoyama, K-i Oyama, T Abe and A W Yau，Effect of Finite electorde area ratio on high frequency Langmuir probe measurements. Journal of Physics D:Applied Physics 45(2012), 075205 (9PP)

指導教授

江士標

審核日期

2018-7-23

推文