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| tautech:
--- Quote from: mag_therm on December 27, 2022, 02:59:50 am ---Here, SDS1202X-E is discontinued and replaced " SDS1202X+ (DISCONTINUED > SEE SDS1000X-E SERIES)" --- End quote --- See here and the 2ch X-E is on special until years end: https://siglentna.com/product/sds1202x-e/ --- Quote ---Any way these things seem all about same price and tarred by the same brush, see page 33 of SDS1000CML manual. That is same problem I have with excessive menu depth on the GWInstek. What is your comment on that? --- End quote --- Menu depth is relative to feature set depth, pure and simple. Minimal feature set like with a CRO you can fit all the buttons, knobs and switches on the front panel and have everything visible without any need for a menu. I went to DSO's in 2009 with a Tek TDS2012B and apart from a little time gaining familiarity with the much greater feature set than a CRO, I never looked back and some 4 years later knowing DSO's were the future and by pure chance I teamed up with Siglent after a little foray with Atten. The only thing you need do different using a DSO and really it still applies with a CRO is plan a strategy to take a measurement and you do the same with a CRO although after years of using one you don't really know you're doing it. It's the same just a different path to get the same result. Now I no longer have or even wish to have a CRO and immersing yourself in DSO usage is far easier as you think about how to take the exact same measurement but in a different manner. My advice is not to be scared of a menu but instead understand why it is there and what it is for and then learn to use it for best effect which soon will repay you. We spend years learning all the new devices in the EE world and resist learning the new test equipment technologies ? Why ? :-// |
| David Hess:
Excessive menu depth has been a problem with modern DSOs, with very few exceptions, since they have existed. That problem is not going away. If you want a simple criteria, which DSOs have a separate slope control? I can think of a couple, and they are all old enough to drink. Exclude instruments which can display both slopes at the same time, because those are also old enough to drink. |
| mag_therm:
Hi tautech, thanks for reply We will leave the comment about your in-experience with op amp aside. About user controls: Did you work with transients? The best 'scope for transients, inverters etc in my 50 year career was the Tektronics 466 . I still use one in retirement. About 9 push buttons in 3 groups. I am presently working on design of some more inverters, using qucs and the '466. I have a plastic DSO there for when it is useful. |
| tautech:
--- Quote from: mag_therm on December 27, 2022, 08:05:46 am ---About user controls: Did you work with transients? --- End quote --- Transients as in fast high current pulses, yes. Years back I played with simple lead battery desulfators comprising of a battery powered (battery under desulphation) and an optimised pulser delivering ~60V @ 7A at 1kHz. Carefully tuned to get highest possible magnetics without saturating the core so to get best results without energy wastage. Some say it's voodoo but when battery OC voltage increases overnight even after powering the desulfator you just know it's improving the status of the plates. If I weren't so busy catching up with outside jobs after our darn wet spring I should get some screenshots as I never saved any all them years ago. Pulser is somewhere here amongst the messy bench. |
| tggzzz:
--- Quote from: baldurn on December 26, 2022, 11:18:39 pm --- --- Quote from: tggzzz on December 26, 2022, 10:38:35 pm --- MrAl was doing a complex test-specific calculation of switching losses, not a simple standard stats function. If the measurement is important, it needs to be visible and reproduceable, which is questionable if done inside one specific instrument. (just like a spreadsheet calculation without the formulae being visible) --- End quote --- Yes and how do you know how precise that measurement is if you do not do statistics on it? --- End quote --- Here's the calculation you again omitted to include... --- Quote from: MrAl on December 26, 2022, 09:08:59 pm ---I remember years ago trying to measure the rise, slope, and fall times of switching waveforms in high power converters so i could estimate the switching losses. It took about 15 minutes to get right and the calculation had to be done on a calculator or computer. If the scope could measure rise and fall times that would help. Mine does not have that function though but i see some of the upper echelon scopes have that feature. --- End quote --- That calculation does not require any statistics. It does require calculus in the form of integration. --- Quote ---Just to be sure, since this thread IS about analog vs DSO, how would you do it with an analog scope (a true analog scope, not those half digital things that can do digital measurements)? I am actually curious and does not know the answer. Would it not be in fact be hard and time consuming to get the same level of precision, that we get by default just by pressing the stat button? --- End quote --- Strawman argument. I was responding to what MrAl wrote, not something else. In future please quote the relevant context; do not attempt to make strawman arguments by omitting context/ |
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