Some thoughts on the Deutsche oscilloscope

I recently saw that Keysight was holding an event online, so I came to learn about Keysight's products. I always felt that Keysight's products were expensive and never paid much attention to them. I also mostly used Tektronix oscilloscopes. I searched online for InfiniiVision1000 X-series oscilloscopes and felt that the prices of this series were more affordable. One of them costs $471, which is about 3,000 yuan when converted into RMB. It seems that I can buy one to do some low-demand tests at home. I think the DSOX1102A oscilloscope has a bandwidth of 70/100 MHz and 2 analog channels. This one is pretty good.

I will talk about the test method of power supply ripple. Ripple is an AC interference signal superimposed on a DC signal, and is a very important standard in power supply testing. Especially for power supplies for special purposes, such as laser power supplies, ripple is one of its fatal weaknesses. Therefore, the test of power supply ripple is extremely important. There are roughly two methods for measuring power supply ripple: one is the voltage signal measurement method; the other is the current signal measurement method. Generally, the channel coupling of the oscilloscope should be set to AC signal. The trigger setting should be set to edge, slope rising. The best sampling method is the peak measurement method.