hugocoolens

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About hugocoolens

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  1. Thanks for taking the time to answer my question. From the first part of your answer I conclude that the frequency as such is of no importance for the magnitude (dB) measurement uncertainty. Would it be possible to provide a numerical example of the amplitude- and phase measurement uncertainty using the above data? thanks in advance Hugo
  2. Setting the trigger mode to Normal solved the problem. Thanks a lot. kind regards, Hugo
  3. I have trouble correctly triggering signals below typically 0.5Hz. From 0.5Hz and upwards, the WaveForms scope triggers correctly, however below 0.5Hz, the trigger point is unpredictable. What can be the reason for this and is there a workaround for it? kind regards, Hugo
  4. Thanks for answering Sergiu, I placed the bead at the Analog Discovery bead and the problem does not disappear. Unfortunately I can't load up the "scope screen file" to show what is happening. I made the file directly with the WaveForms export menu. It's a png-file, only 68k large, but I always get the message: "There was a problem processing the uploaded file. Please contact us for assistance. "
  5. As I am having trouble with noise when using the analog discovery I'd like to use the ferrite clamp which came with it. Which is the preferred placement? Close to the module itself, close the the computer, elsewhere? thanks in advance Hugo
  6. I have purchased the new Discovery 2 and installed WaveForms 2015. I'm trying to change a voltage at the input of a circuit from -2 to +2V in 10 seconds and measure the output voltage, then put the data in a csv-file, the idea is to plot U_O=f(U_I) (I'm not interested in the timepoints). I tried applying a triangular voltage and measuring input and output but I find it very hard to make my data (which I export in a csv-file) starting at -2V exactly and stopping a +2V exactly, I have to fiddle constantly with the trigger point and the zero position and have to edit the csv-file in the end myself. I also noticed the add XY function, that gives indeed a nice plot of U_O=f(U_I), but I'm interested in the data of only the XY-plot not in the data of the scope in Y-t format. Is there a way to only export the XY-data? In fact all I need is a kind of script which performs one voltage sweep from -2 to +2 in 10s and measures channel 1 and 2 and puts the data in a csv-file. Could someone explain me how to accomplish this with the new software? thanks in advance and kind regards, hugo
  7. ​thanks this works like a charm under linux (no drive-letters needed ;-) hugo
  8. ​Is it possible to write the output data to a file? regards, hugo
  9. ​I noticed there was something wrong with the brackets in the last print statement: Here is a corrected version: print(hz +"\t"+ Math.log(Scope1.Channel2.measure("Amplitude")/Scope1.Channel1.measure("Amplitude"))/Math.LN10*20) kind regards, Hugo
  10. Thanks, ​I found 'add channel', it works very well, just wondering why this is limited to 8 runs... kind regards, hugo
  11. To check the quality of my measurements I'd like to repeat a bodeplot sweep e.g. 100 times, I'd like to use the data of those sweeps to determine their mean and standard deviation. I wonder whether there is something built in in WaveForms 3 for this kind of repeated measurements? kind regards, hugo
  12. ​Oh, now I see what you mean, I'll do my homework from now on thanks again for all the help hugo
  13. ​thanks,I thought it was like you explained here above, but just wanted to be sure 100% kind regards, hugo
  14. ​Could clarify what you mean by "mark the answers"? Is this the same as clicking on "You like this"? hugo
  15. ​until now, for me it works fine under debian wheezy, it's just the error when installing it which made me wondering whether I might expect trouble when using it regards, hugo