A Quick and Automatic Setting Method of Digital Oscilloscope Based on Hardware Centralized Setting

Abstract

The invention discloses a fast and automatic setting method for digital oscilloscopes based on hardware centralized setting. The minimum horizontal time base file is used as the horizontal time base file during amplitude search, and the amplitude of the channel to be searched is adopted in the hardware centralized setting mode when performing amplitude search. Set the gear position and search for the amplitude. The specific method of hardware centralized setting is: set the relevant hardware parameters of all channel amplitudes to be searched at the same time. Then determine whether the current amplitude gear is suitable. If it is suitable, set the amplitude gear. If the channel is not suitable, use the hardware centralized setting method to set the next amplitude gear. After the amplitude search is completed, perform frequency search and optimal amplitude adjustment. In the present invention, the hardware centralized setting method is adopted to reduce the times of adjusting hardware parameters, shorten the automatic setting time of the digital oscilloscope, thereby realizing the fast automatic setting of the digital oscilloscope.

Description

Technical field [0001] The invention belongs to the technical field of measuring instruments, and more specifically, relates to a fast and automatic setting method of a digital oscilloscope based on hardware centralized setting. Background technique [0002] As a widely used general-purpose instrument, oscilloscope has experienced the continuous development of analog oscilloscope, digital storage oscilloscope and three-dimensional oscilloscope. Regardless of whether it is an analog oscilloscope or a digital oscilloscope, the observation signal must first be adjusted by the analog channel before it can be effectively observed. Initially, adjusting the input signal to the best observation range is achieved by manually setting the channel parameters (amplitude, coupling, position). With the development of digital oscilloscopes, manual settings can gradually be replaced by automatic settings to quickly observe signals. However, due to the complexity of the observed signals and the g...

AI Technical Summary

Problems solved by technology

If you repeatedly adjust the parameters of the channel to find the effective observation range of the signal, it will take a lot of time

[0006] 3. Due to the unknown of the measured signal, it is necessary to continuously adjust the amplitude parameters of the channel until a suitable gear is found, especially when the channel has no effective signal, it also needs to search multiple times, which will also take a lot of time

For this reason, an additional amplitude search is required to place in the appropriate observation position, which takes additional time

[0009] 6. When looking for the signal frequency to determine the horizontal time base, because you don’t know which channel has an effective signal, you have to measure each channel in turn to get the effective signal frequency, which also takes extra time

Reading waveform data and analyzing waveform data through software will obviously consume time as the number of channels increases and the storage depth increases

[0011] To sum up, due to the characteristics of the digital oscilloscope, if there is no optimized method and technology for the automatic setting, it will take a long time and cause poor user experience.

Images