基於光子計數恆定控制之創新暉光儀;Innovative airglow instrument based on constant control of phonton count

NCUIR > Engineering College > Graduate Institute of opto-Mechatronics > Electronic Thesis & Dissertation > Item 987654321/80562

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/80562

Title:	基於光子計數恆定控制之創新暉光儀;Innovative airglow instrument based on constant control of phonton count
Authors:	劉成震;Liu, Cheng-Chen
Contributors:	光機電工程研究所
Keywords:	光電倍增管;倍增管控制;暉光儀;PMT;photomultiplier;AirglowInstrument
Date:	2019-07-15
Issue Date:	2019-09-03 14:45:41 (UTC+8)
Publisher:	國立中央大學
Abstract:	因為光電倍增管將光子脈波輸入到單晶片之I/O PORT時受限於單晶片的取樣能力而產生飽和現象，而前篇論文[1]證明了改變驅動光電倍增管能直接影響輸出光子脈波數，故本實驗著重於開發與優化控制電壓的方法，達到擴增光度的量測範圍與量測精度之目的。本實驗將從偏壓濾波起，設計不同實驗與變因量測電路特性。再經由數學計算得到各狀況下的表現，以便在之後的建模能更精準。建模完畢後便能得到自適應增益所需要的公式與參數，有了這些數據便能即時的將光子數、驅動電壓、光功率間互相轉換以應用在自適應系統內；結果亦證實此方法能在固定光子數狀況下，得到真實的光功率，成功擴增量測範圍。此實驗亦保留了緊急斷電機制，能在異常狀況發生如電壓異常、溫度異常時緊急啟動安全機制斷電，以保護系統內的電路與其他元件。 ;The last thesis[1] build an innovative way to observe and get phonton performance data from photomultiplier tube. In this thesis,we’ve used two methods including PI feedback control and system ID to frame all the situation a PMT will have in the linear zone of drvie voltage and optical power. With this, we can avoid from nonlinear situation a PMT will happen and also trace a constant phonton count,expanding measuring area,to protect this instrument.
Appears in Collections:	[Graduate Institute of opto-Mechatronics] Electronic Thesis & Dissertation

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