Timeline for Sine wave shows up on oscilloscope but keeps moving
Current License: CC BY-SA 4.0
20 events
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| Apr 10, 2022 at 11:05 | history | edited | JRE | CC BY-SA 4.0 |
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| Aug 29, 2020 at 12:34 | comment | added | D.A.S. | Theres also undo and file >recover auto save | |
| Aug 29, 2020 at 12:27 | comment | added | D.A.S. | Feel free to learn how to modify that design with mouse rubber band mode stretching ends of parts and mouse wheel to change values. The scope properties are pretty good for measuring power, current or voltage. And undocked traces can be moved and stretched. Files saved as text or exported as links are handy too | |
| Aug 29, 2020 at 10:00 | comment | added | Hitek | @TonyStewartSunnyskyguyEE75 - Thanks for the link! I've never enjoyed doing math, so I never really took much interest in analog electronics(although I'm "better than your average bear") and spent most of my electronics career designing digital circuits. Your link helps me visualize the current flow in some of the push-pull vintage amplifiers I have been repairing lately! Still trying to understand the bias and current mirror circuits, both being offset from ground. Anyways, Thanks again! | |
| Aug 28, 2020 at 15:29 | vote | accept | fregas | ||
| Aug 28, 2020 at 13:14 | comment | added | D.A.S. | What’s in common with this? No horizontal trigger . tinyurl.com/y3vj34g4. At least have the ability. | |
| Aug 28, 2020 at 9:28 | comment | added | JRE | @fregas: I see you have what looks like a digital scope parked on top of the 2235. Have you compared what the two scopes display when connected to your 2Hz signal? | |
| Aug 28, 2020 at 6:35 | comment | added | schnedan | Finbarr and crasic are right in their comments... I just want to mention that most modern scopes also provides an auto-setup button. And most scopes I have worked with (even cheep ones) do a decent job in getting the setup right for most waveforms. | |
| Aug 28, 2020 at 6:15 | answer | added | JRE | timeline score: 6 | |
| Aug 28, 2020 at 5:43 | history | edited | JRE | CC BY-SA 4.0 |
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| Aug 28, 2020 at 2:37 | comment | added | fregas | added a link to the video. :) | |
| Aug 28, 2020 at 2:37 | history | edited | fregas | CC BY-SA 4.0 |
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| Aug 28, 2020 at 1:38 | comment | added | Bruce Abbott | "I followed a youtube video to setup a sine wave using an arduino uno and a capacitor" - Link to Youtube video? | |
| Aug 28, 2020 at 1:35 | answer | added | D.A.S. | timeline score: 0 | |
| Aug 28, 2020 at 1:34 | comment | added | tlfong01 | Ah, let me see. My cheapy US$300 DS1504 50 MHz, 4 channel storage scope has a "RUN/STOP" button. So I don't care if the waves are moving (often you just cannot get a "steady" sync, or don't know which channel to auto sync, etc). So I just press the "freeze" button, and then go for a cup of coffee, come back, and take my time, to leisurely zoom in or out, shift left or right on the frozen waveform to focus on the interesting portion, perhaps also press the download button to save the perfect photo to my 16GB USB memory stick (taking about 5 seconds for 800px wide screen capture). | |
| Aug 28, 2020 at 1:14 | comment | added | jonk | fregas, if your triggering isn't set right or is set at a wrong voltage, then you will never figure out when to go back and re-draw the data. And so you'll just, probably, start redrawing at some random point (like when you get to the end of the display, you might just go back to the beginning, but at who-knows-where on the sine wave?) So the triggering circuits are really, really important to getting useful displays out of an oscilloscope. When you first are thinking about using the scope, you should think about "what exactly shall I trigger on?" That should be the first thing in mind. | |
| Aug 28, 2020 at 1:10 | comment | added | jonk | fregas, I think Tektronix used to have some nice "tutorials" on using an oscilloscope. You really should read these. But separately, try and "think like an old-style oscilloscope" which didn't have any memory like modern digital ones do. If you were one of those, how would you make a sine wave "look stable?" You'd need to somehow "trigger" (cause the trace to reset back to the beginning left edge of the scope) at just the right moment of the sine wave. To do that, you'd want to trigger at some "voltage" point. The trigger circuitry does a lot of fancy stuff. It's important. Read about it. | |
| Aug 28, 2020 at 0:58 | comment | added | crasic | This is a basic misunderstanding of how oscilloscopes work, you need to be in normal trigger mode. | |
| Aug 28, 2020 at 0:58 | comment | added | Finbarr | Sounds like you need to adjust the trigger mode or level on the scope. | |
| Aug 28, 2020 at 0:49 | history | asked | fregas | CC BY-SA 4.0 |