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系統識別號 U0026-1408201214364800
論文名稱(中文) 使用探空氣球進行大氣直流電場量測
論文名稱(英文) The measurement of atmospheric DC electric field by Sounding Balloon
校院名稱 成功大學
系所名稱(中) 太空天文與電漿科學研究所
系所名稱(英) Assistant, Institute of Space, Astrophysical and Plasma Sciences(ISAPS)
學年度 100
學期 2
出版年 101
研究生(中文) 邱政修
研究生(英文) Cheng-Hsiu Chiu
學號 la6991057
學位類別 碩士
語文別 中文
論文頁數 85頁
口試委員 指導教授-陳炳志
口試委員-許瑞榮
口試委員-林博雄
中文關鍵字 電場量測  探空氣球  閃電  高空短暫發光現象 
英文關鍵字 Electric field measurement  Sounding balloon  Lightning  Transient Luminous Event 
學科別分類
中文摘要 大氣垂直電場在大域電路及各種高空短暫發光現象形成機制的理論模型中,扮演著重要的角色。本論文的目標在發展實驗方法,於30公里高度內中進行大氣垂直電場的實地量測,進而瞭解雲層電荷分佈與電位變化。我們設計了一套垂直電場電位計,量測已知間距兩端點的電壓差,就可以得到電場大小,並且我們也設計製作了一套平板校正電場,完成電場電位計的實驗室內校正與測試。在本論文中,我們使用探空氣球做為飛行載具,氣象探空氣球可以將1公斤級的酬載儀器送到30公里高空。我們也同時發展了輕型的航電系統,配合垂直電場電位計電位,用來量測不同高度時的垂直電場,以及環境氣象資訊。在2012年5月31日於台東所進行的飛行實驗中,探空氣球飛掠了一個發展中的對流系統,成功的取得了大氣垂直電場的數據與溫、溼度資料,經由分析,我們觀測到高空電場值大小隨著高度上升呈現指數衰減的情形,並且也觀測到雲層間電荷排列的層狀結構,以及在劇烈擾動區內,因為電荷無法有效的分離因而產生高度電中性的現象,而在對流系統附近電場值有明顯的變化。
英文摘要 The atmospheric electric field plays an important role in the theoretical models of the global electric circuit and the various types of the transient luminous events. In this thesis work, we develop a new experiment method to have an in-situ measurement of the vertical electric field up to the altitude of 30km to explore its spatial and temporal variation and the charge distribution. A lightweight electric field meter (EFM) is developed to measure the potential difference between two probes with a fixed distance and the electric field is derived directly by its definition. An in-lab facility with two parallel slabs to produce uniform electric field is designed carefully for the purpose of the calibration and test of the EFM. The metrological balloon is used as the flight carrier to deliver a 1kg-class payload to 30km height. We also develop compact and lightweight aviation electronics to obtain ambient metrological parameters. The results of the flight in May 31, 2012 are analyzed and reported in this thesis. The electric field meter flied over a growing convection system and measured the vertical electric field as well as ambient temperature, humidity, and magnetic field vector successfully. An exponential-decaying background electric field with altitude is observed. And we also identify several layer-distributed charges in different height, and the electric field become electrically neutral in the turbulent zone due the difficulty of the charge separation. A significantly variation of the electric field is also identified in the proximity of the convection system.
論文目次 摘要 i
Abstract ii
致謝 iii
目錄 iv
圖目錄 vi
表目錄 ix
第一章簡介 1
1.1大域電路 1
1.2 雲對地閃電的產生機制 2
1.3高空短暫發光現象 6
1.3.1紅色精靈 7
1.3.2淘氣精靈 9
1.3.3藍色噴流與巨大噴流 12
1.3.4總結 14
1.4 大氣垂直電場與測量 15
1.5論文結構 16
第二章 高空量測平台-探空氣球 17
2.1 大氣層探索簡介 17
2.2 探空氣球簡介 18
2.3 中央處理器單元-Arduino 22
2.4 輔助探測器簡介 22
2.4.1全球定位系統 23
2.4.2三軸磁力計 24
2.4.3三軸加速度計 26
2.4.4溫度計 28
2.4.5溼度計 29
2.5 無線通訊傳輸 29
2.6 電力系統 33
2.7 飛行酬載箱體 33
2.8 航路預測與規劃 34
2.9 飛行實驗科學酬載 35
第三章 大氣直流電場量測計 38
3.1電場量測計簡介 38
3.1.1 雙探針與硬體設計 38
3.1.2 電路設計 41
3.1.3二級訊號放大與濾波 43
3.2 平板校正電場 46
3.3 儀器測試與結果 50
第四章 利用探空氣球進行大氣直流電場量測 53
4.1 2012年5月31日大氣直流電場量測實驗 53
4.1.1實驗概述 53
4.1.2 磁力計資料分析 56
4.1.3 溫、溼度計資料 57
4.1.4電場量測計(EFM)資料 60
4.1.5大氣垂直電位變化 72
4.2 總結 73
第五章 結論與未來展望 74
5.1 結論 74
5.2 未來展望 74
參考文獻 78

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