近年來PPT的研究一直有受到關注，設計簡單製作容易的特點使之一直為熱門研究，利用高電壓產生的溫度將推進劑材料離子化，再利用勞倫茲之力將其加速推出。本論文將PPT的模型整體進行縮小化，有別於已往的論文電極距離設定在30mm左右，將電極距離範圍定在3mm~10mm，且同時將點火器的設備移除，利用本身高電壓跳電之電弧代替點火器，將整體設計再簡單化，且採用了雙探針型Langmuir Probe進行了電漿密度的量測，也做了光譜的實驗，檢測PPT產生的電漿中含有的離子。本論文將有在常壓與真空的環境下做量測，可以發現常壓下的數據較低，且電漿的分佈較為凌亂；至於真空部分，量測的結果則是較符合文現中的數值範圍，證明即使在沒有點火器且電極距離較近的模型尺寸下PPT依然是可以運行產生電漿。

In recent years, Pulsed Plasma Thruster (PPT) researches have been concerned because the design of PPT is simple and easy to make it has become popular researches. In this study I used the high voltage to produce the high temperature, and then the propellant material was ionized, thus ionization made thrust called Lorentz force.
In this study, I did three experiments of the PPT model. The first experiment, according to the previous studies, the distance between two electrodes were set as 30 mm, but in this study the distance which is much smaller than other studies was set from 3 mm to 10 mm, and the igniter was removed from the model at the same time. Besides, I used the high voltage arcing instead of the igniter, so that the entire design became more simplified. The second experiment, the use of a set of double Langmuir Probe measured the plasma density was successful. The third experiment, I measured the plasma ion through a spectral experiment.
I conducted these experiments under standard pressure and in the vacuum, the results of the experiment under standard pressure are lower than in the vacuum, also the distribution of the plasma under standard pressure is random. Moreover, the plasma can be generated even though I remove an igniter and shorten the distance of two electrodes.

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