Oliff PLC
Method and apparatus for automatically adjusting the hold-off time of a DSO
The present invention provides a method and apparatus for automatically adjusting the hold-off time of a DSO based on real-time cycle measurements of the system trigger signal: obtaining a cycle sequence by measuring the system trigger signal, the maximum cycle and minimum cycle, then judging the difference of the maximum cycle and minimum cycle: if the difference is greater than a threshold set by user, setting the hold-off time to the maximum cycle, the minimum cycle or the median cycle, then returning; otherwise terminating the adjustment of the hold-off time. At this point, the hold-off time is correctly set. Therefore, the present invention reduces the complexity and time consumption of the hold-off adjustment, and allows the test signal to be quickly and stably displayed on screen of DSO, meanwhile, which makes the trigger adjustment of DSO more convenient.
UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA
G
G01R
inventional
Qinchuan Luonan Huiqing Hao Feng
Zhang Zheng Pan Zeng Tan