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 该控制系统在工作过程中,有多种产生于不同部件的信号需要检测,其中有模拟输入信号十三路,数字输入信号三路,通过数据采集和信号分析,判断该控制系统工作是否正常。结合系统检测的具体要求,本论文从硬件设计和软件设计两个方面,实现了数据采集系统的硬件接口电路和软件算法。
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 本文应用agrawal的关于soa理论模型,详细研究了具有不同陡峭边沿的皮秒超高斯光脉冲经soa后的时域特性的变化,发现输出脉冲的峰值功率、脉冲宽度与输入脉冲的峰值功率、输入脉冲边沿的陡峭程度以及soa的偏置电流密切相关。