Research on an efficient method of auto set of digital oscilloscope

The method of auto set makes it more convenient for users to capture and observe the unknown signal. It focuses on some related key technologies which are discussed in detail in the paper, such as initialize, judge whether all input channels are signaled or not, search vertical sensitivity by binary search method only if the channel has signal, set up the vertical sensitivity when multipath signals need to separate by the related software method, display the bias voltage, setup gear of time base according to the base-time system. And the experimental results are presented; the efficiency of complete design scheme is much higher than before.