I want to monitor the quality of the mains power supply for.
For measuring I have 2 options.
1. Use a transformer.
2. Use a differential probe.
I will probably go for option 2 because I also want to see spikes and short dips.
Is there a good way to trigger on the following.
1. short dip anywhere in the sine wave.
2. Top or bottom part of sine get below 10% of the normal top value.
3. Missing part of sine.
I also want to see a couple of sine waves before and after the event.
You could do something with masks but then you can not see the complete sample crossed the mask boundary
So actually I think I need 2 triggers 1 zero crossing on the sine wave. 2 Hitting the mask boundary on the triggered signal