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Everything posted by Kabron
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Thanks for answer, device is AD2 Waveforms 3.21.3 Sure it's running.
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Suggestion for improving the impedance analyzer
Kabron replied to fonak's question in Test and Measurement
Thanks a lot, Attila! -
No, you did not:
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I guess that corresponding part of example should be corrected in Waveforms Help, because now it looks like ravings of a madman🙂 And on this page also: https://digilent.com/reference/software/waveforms/waveforms-3/reference-manual?redirect=1#code
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Suggestion for improving the impedance analyzer
Kabron replied to fonak's question in Test and Measurement
Looking forward to... -
Suggestion for improving the impedance analyzer
Kabron replied to fonak's question in Test and Measurement
Maybe it is possible to coorect this in the future versions? -
Suggestion for improving the impedance analyzer
Kabron replied to fonak's question in Test and Measurement
So, I guess it is not possible to control DIOs and Resistor values in non Adapter modes in Custom Amplitude scripts. Am I right? -
Suggestion for improving the impedance analyzer
Kabron replied to fonak's question in Test and Measurement
I did it with Amplitude regulation. And it works as expected. Now, how to realize DIO and Resistor switching in "W1-C1-R-C2-DUT-GND" mode inside Custom Amplitude script? -
Suggestion for improving the impedance analyzer
Kabron replied to fonak's question in Test and Measurement
Definitelly I do not understand something. In script mode Impedance.run() command blocked execution, so it's impossible to do anything till it stops. In Custom script mode StaticIO object does not recognized: Generally, all I want to do is: While Impedance measurements running at every step get DUT Ch2+ voltage in the form of Vrms, Vreal, VImag or something acceptible. If it is < some preset switch to lower Rref(by activating corresponding DIO) and vice versa. Or if events Resistor too small/high are available make the same actions based on them. -
Suggestion for improving the impedance analyzer
Kabron replied to fonak's question in Test and Measurement
StaticIO. does not recognized in custom mode script. -
Suggestion for improving the impedance analyzer
Kabron replied to fonak's question in Test and Measurement
And what? -
Suggestion for improving the impedance analyzer
Kabron replied to fonak's question in Test and Measurement
As I understand, Impedance.DIOs.DIOx.value commamd works only in Adapter mode And StaticIO. does not recognized in custom mode script. -
Suggestion for improving the impedance analyzer
Kabron replied to fonak's question in Test and Measurement
Thanks a lot, Attila. That is right and I did not notice. After calibration everything work allmost exactly as with Jaxbird's software. The only thing I could not realize is how to switch automatically reference resistors. They are controlled via DIO1-3. I suspect it could be done via custom mode script, but I could not find how to operate with measurements and controls inside this mode. -
Suggestion for improving the impedance analyzer
Kabron replied to fonak's question in Test and Measurement
Hi, there I made Impedance Analyzer adapter according Jaxbird from eevblog. It works fine with Jaxbird's software. Now I tried to adapt it for WaveForms AI. I made the following adjustments: 1. 1+Res 2+ DUT -1-2 GND configuration. 2. Channel2 Attenuation: 0.0625 (As Opamps give 16x Gain); 3. Reference Resistors: 34, 500, 5000 Ohm. 4. Open/Short calibrations for all Ref Resistors. Now I'm observe strage things: L and C measurements in Meter mode works fine in compare with Jaxbird's software. R measurements are 0.8 of the real values. Could not realize the reason. Maybe somebody will... Also, there is a strange difference in graphic and Meter measurements: in Meter at 2MHz |Z|, Rs, Rp are allmost equal to real resistance value, but in graphic they are much lower. -
Suggestion for improving the impedance analyzer
Kabron replied to fonak's question in Test and Measurement
Hi, there I made Impedance Analyzer adapter according Jaxbird from eevblog. It works fine with Jaxbird's software. Now I tried to adapt it for WaveForms AI. I made the following adjustments: 1. W1 1+Res 2+ DUT -1-2 GND configuration Amplitude: 0.2V . 2. Channel2 Attenuation: 0.0625 (As Opamps give 16x Gain); 3. Reference Resistors: 34, 500, 5000 Ohm. 4. Open/Short calibrations for all Ref Resistors. Now I'm observe strage things: L and C measurements in Meter mode works fine in compare with Jaxbird's software. R measurements are 0.8 of the real values. Could not realize the reason. Maybe somebody will... -
Phase difference measurement in Logging on Analog Discovery 2
Kabron replied to Grant Mathieson's question in Test and Measurement
Thanks for answer. Not sure, that I understand how to measure phase numeric value with FFT, Spectrum or Network Analyzer. The script you provided gives ultimate precision, but acos function is defined in 2 quadrants (0-180 degrees). It is not possible to define DUT nature (inductve/capacity). I'going to use custom script for such mesurements. -
Phase difference measurement in Logging on Analog Discovery 2
Kabron replied to Grant Mathieson's question in Test and Measurement
IMHO these calculations are redundant sum1 /= c sum2 /= c sum12 /= c @atilla What is the source idea of this phase measuring method? I could not find it.