摘要
研制了用于飞行时间质谱仪 (TOF)的多通道数字延迟 /脉冲发生器系统。介绍了复杂可编程器件(CPLD)和可编程数字延迟线 (AD95 0 1)在系统中的应用。讨论了高速数字系统中的定时误差问题。该系统的延迟分辨率达 1ns,脉冲宽度分辨率为 10 0ns。
A multi channel digital delay/pulse generator for time of flight (TOF) mass spectrometer was designed. The application of complex programmable logic device (CPLD) and digital programmable delay line AD9501 in the system is described. The problem of timing errors in high speed digital system is discussed. With the resolution of delay being 1 ns and resoluton of pulse width 100 ns, the system can control 5 devices simultaneously.
出处
《分析仪器》
CAS
2002年第3期13-17,共5页
Analytical Instrumentation
