光谱仪器扩展了基于pxie (PXI Express)的高速数字化机产品线,增加了9个新卡。新款M4x。22xx series includes modules that offer one, two or four fully synchronous channels. Each channel is equipped with its own analog-to-digital converter (ADC), with实时信号采样速率从1.25 GS/s到5 GS/s,以及类似作用域的信号调理电路,允许对输入增益、信号偏移和耦合等参数进行编程。