Timeline for How to measure/display the delay of two cosine signals on the oscilloscope?
Current License: CC BY-SA 3.0
15 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 25, 2018 at 14:31 | answer | added | loudnoises | timeline score: 1 | |
| Jan 25, 2018 at 14:24 | comment | added | loudnoises | What you've done is concatenate the signals rather than play them simultaneously out of your audio interface, i.e. your play one then the other, not left and right. | |
| Jan 18, 2018 at 18:46 | answer | added | Daniel Bogdanoff - Keysight | timeline score: 0 | |
| Jan 18, 2018 at 7:57 | comment | added | Dimitri | I would suggest you to make a test and change shifted sinus signal to a square signal. Only to be sure that you are really generating 2 different signals. Because from the code your generation is correct and it's doesn't seem to be an osciloscope problem. | |
| Jan 18, 2018 at 7:21 | answer | added | Sven B | timeline score: 0 | |
| Jan 18, 2018 at 1:54 | comment | added | sstobbe | Your time sample vector is a 1XN, which means your wav matrix will likely be a 1x2N vs a Nx2 which I believe you want | |
| Jan 17, 2018 at 21:27 | comment | added | John Birckhead | It looks like you are doing everything right with the scope. Check your audio device driver. | |
| Jan 17, 2018 at 20:44 | comment | added | user136077 | This was a classic error with old style analog oscilloscopes - alternative full sweeps with alternating the trig source, too. I cannot believe this is your case, but check it. Test with single CH signal and having a RC lowpass filter generating phase lag to CH2. | |
| Jan 17, 2018 at 19:51 | comment | added | Chris M. | Your output from your Matlab code is in stereo - the first column is the left channel, the second column is the right. Are you connecting via the headphone jack, or to speaker leads directly? | |
| Jan 17, 2018 at 19:20 | comment | added | Tesla001 | Thank you for your reply. I am doing this for learning purposes. I also tried with 1 ms delay and still, the signals are not shifted. | |
| Jan 17, 2018 at 18:10 | comment | added | Andy aka | Maybe you have a channel on your scope set to invert. It happens like this sometimes. | |
| Jan 17, 2018 at 18:04 | answer | added | cammac | timeline score: 0 | |
| Jan 17, 2018 at 18:02 | comment | added | D.A.S. | Why do you want to measure a 5 ms delay on 100Hz signal ? | |
| Jan 17, 2018 at 17:55 | comment | added | Spehro 'speff' Pefhany | What exactly are you measuring? Your "delayed" signal is just the same as an inverted signal.. | |
| Jan 17, 2018 at 17:49 | history | asked | Tesla001 | CC BY-SA 3.0 |