Products > Test Equipment
SDS800X HD Wanted Features
AndyC_772:
Thanks. I do understand that these scopes have powerful automated measurement capability, which may be suitable in some cases.
However, in my business (predominantly concerned with ultrasound signals), the points I may want to measure between are not easy to define in terms of local peaks, slopes, threshold crossings, or whatever. It's valid, and necessary, to be able to measure from "here" to "there", where those points are obvious to an experienced eye.
2N3055:
--- Quote from: AndyC_772 on December 05, 2024, 11:35:30 am ---Thanks. I do understand that these scopes have powerful automated measurement capability, which may be suitable in some cases.
However, in my business (predominantly concerned with ultrasound signals), the points I may want to measure between are not easy to define in terms of local peaks, slopes, threshold crossings, or whatever. It's valid, and necessary, to be able to measure from "here" to "there", where those points are obvious to an experienced eye.
--- End quote ---
I do understand need to measure timing from and to various parts of some feature in sequence. I do that on occasion, when trying to understand something happening.
And for that you need to use Zoom. Like I have been repeating, changing timebase on stopped capture is not Zoom. It is changing the timebase.
ebastler:
--- Quote from: Performa01 on December 05, 2024, 11:20:04 am ---Cursors are not the tool of choice for accurate measurements – they are largely a thing from the past when DSOs were not powerful enough to do proper waveform analysis but had to resort to tools from the analog scope era instead. Nowadays I would only use them to illustrate measurements, but let the DSO calculate the actual results.
--- End quote ---
That's a recurring theme especially in discussions related to Siglent scopes. Yes, I get it that powerful measurements are available -- but I think Siglent should also acknowledge more that interactive use of the scope is still an important modality.
As AndyC mentioned, some measurements on complex signals wil be very difficult to set up. A cursor measurement may be much quicker to make and may be adequate for the required assessment. And more broadly, I would argue that many use cases of an oscilloscope are about "what's going on here?", not about "what is that exact number?"
Good responsiveness and flexibility in moving around on the horizontal and vertical axis, interactively changing the time base, taking some quick cursor measurements, are still important.
2N3055:
--- Quote from: ebastler on December 05, 2024, 12:48:43 pm ---
--- Quote from: Performa01 on December 05, 2024, 11:20:04 am ---Cursors are not the tool of choice for accurate measurements – they are largely a thing from the past when DSOs were not powerful enough to do proper waveform analysis but had to resort to tools from the analog scope era instead. Nowadays I would only use them to illustrate measurements, but let the DSO calculate the actual results.
--- End quote ---
That's a recurring theme especially in discussions related to Siglent scopes. Yes, I get it that powerful measurements are available -- but I think Siglent should also acknowledge more that interactive use of the scope is still an important modality.
As AndyC mentioned, some measurements on complex signals wil be very difficult to set up. A cursor measurement may be much quicker to make and may be adequate for the required assessment. And more broadly, I would argue that many use cases of an oscilloscope are about "what's going on here?", not about "what is that exact number?"
Good responsiveness and flexibility in moving around on the horizontal and vertical axis, interactively changing the time base, taking some quick cursor measurements, are still important.
--- End quote ---
This is a recurring theme because people always try to force their previously learned behaviour to new tools that don't (cannot?) support it.
I am not critiquing anybody, but point to a human condition...
I bought a new car few months ago. It is still weird. Cruise control is different. Heck, gasoline cap is on the "wrong" side. I still occasionally park at the gas station from the wrong side of pump, if I don't remember to look at the dashboard where the little triangle is. We are creatures of habit. But I like my new car MUCH better than the old one in pretty much every aspect.
What Andy asked for is perfectly possible, by using Zoom.
And as I said, I do this quite often. But realistically, rarely I consider cursor measurements to be ps/µV level accurate. It is more eyeballing. Very accurate positioning is rarely my concern.
eTobey:
--- Quote from: AndyC_772 on December 05, 2024, 11:35:30 am ---the points I may want to measure between are not easy to define in terms of local peaks, slopes, threshold crossings, or whatever. It's valid, and necessary, to be able to measure from "here" to "there", where those points are obvious to an experienced eye.
--- End quote ---
Give it up... people dont understand here, nor is this scope so nice to use.
You may want to look at my profile (website), which could help you with some shortcomings of that scope, or give you an idea how to make it work the way you want it to.
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