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引言在近代电子物理学中,对于短暂信号瞬变过程的研究,已成为重要的问题.当信号本身的持续时间极短,而其重复周期又很长时,用普通的示波器已不能进行观测.因为当扫描频率与信号重复频率相同时,被研究的信号太细,光线太淡看不清楚;倘若提高扫描的频率为信号的若干倍,则扫描基线亮度与信号亮度相差太大,为不使荧光屏过载,只能调低亮度,结果信号波形仍旧看不清.如果用驱动扫描发生器,就可以接在普通示波器上专门观察脉冲波.它只有在信号到来时扫描,其他时间使电子束截止,并能在扫描期间产生出精确的时间标志,使用起来方便,测量精确.
INTRODUCTION In modern electronic physics, the research of transient signal transient process has become an important issue.When the duration of the signal itself is very short and its repetitive period is very long, it can not be observed with a common oscilloscope. Because when the scanning frequency and the signal repetition frequency is the same, the signal being studied is too thin, the light is too light to see clearly; if the frequency of scanning is increased several times, then the difference between the scanning baseline brightness and the signal brightness is too big, Fluorescent screen overload, only to reduce the brightness, the result of the signal waveform is still not see clearly.If you use the drive scan generator, you can take a special view on the ordinary oscilloscope pulse wave.It only scan when the signal arrives, the other time the electron beam ends , And can produce accurate time mark during scanning, it is convenient to use, the measurement is accurate.