Especially it allows various types of interruptions of external digital input , timer output and a / d conversion , each type of interruption has its own role in the signal measurement or in exact pace control , its fifo buffer function makes it possible to work at the sampling rate of 200k samples per second without carrying over - burden interruption rate , its latch type external interrupt request along with its high frequency clock makes a precise locating of pulse edges possible 該控制系統(tǒng)在工作過程中,有多種產(chǎn)生于不同部件的信號需要檢測,其中有模擬輸入信號十三路,數(shù)字輸入信號三路,通過數(shù)據(jù)采集和信號分析,判斷該控制系統(tǒng)工作是否正常。結(jié)合系統(tǒng)檢測的具體要求,本論文從硬件設(shè)計和軟件設(shè)計兩個方面,實現(xiàn)了數(shù)據(jù)采集系統(tǒng)的硬件接口電路和軟件算法。
We apply the agrawal ' s theory model of soa , and study the temporal characteristics of the output pulse for input picosecond optical pulses with different sharpness edges passing through a semiconductor optical amplifier , and find that the peak power and the pulse width of the output pulse depend on the input pulse peak power , the sharpness degree of the input pulse edge and the bias current of soa 本文應(yīng)用agrawal的關(guān)于soa理論模型,詳細(xì)研究了具有不同陡峭邊沿的皮秒超高斯光脈沖經(jīng)soa后的時域特性的變化,發(fā)現(xiàn)輸出脈沖的峰值功率、脈沖寬度與輸入脈沖的峰值功率、輸入脈沖邊沿的陡峭程度以及soa的偏置電流密切相關(guān)。