For me it would be great to be able to define my own math functions and display the values on the screen.
(Same Style as "Waveform Parameters -> Show on screen)
For example … I would like to show the current and power value on the screen … I know the resistance …
so I would need the math function “Current=CH1/Resistance” and “Power=CH1*CH1/Resistance”
A other point … I use the “Waveform Paramters” and display the values on the screen (DC Mean, AC/DC RMS, Frequency) … but unfortunately it is not possible to save the settings and the software start with every new start without my settings … so I must set my settings every time from the scratch …
It seems that “Save Oscilloscope Settings” not includes this settings.
This would be very helpfull for me … maybe it is possible for you to think about …
Thank you in Advance …
Thank you for the feedback.
All suggestions, comments and questions are welcome.
[quote]For me it would be great to be able to define my own math functions and display the values on the screen.[/quote] This kind of general purpose ‘calculator’ may be quite difficult to implement to the oscilloscope software…
An alternative, very flexible solution can be to use Excel spreadsheet software to carry out the calculation. You can import the oscilloscope data using DSOLink.dll.
For more info please see in the help menu: “Data acquisition to Microsoft Excel”.
[quote]A other point … I use the “Waveform Paramters” and display the values on the screen (DC Mean, AC/DC RMS, Frequency) … but unfortunately it is not possible to save the settings and the software start with every new start without my settings … so I must set my settings every time from the scratch …
It seems that “Save Oscilloscope Settings” not includes this settings. [/quote]I’m sorry for the inconvenience. The “Waveform Parameters” settings are not (yet) remembered.
Thank you for your quick response. The advice with Excel is helpfull but I would need the TrueRMS AC/DC value for the calculation, is it possible to read this value with the DLL?
[quote]The advice with Excel is helpfull but I would need the TrueRMS AC/DC value for the calculation, is it possible to read this value with the DLL?[/quote]The data format of the DLL is very simple. There are ‘plain’ Analog-to-Digital converter’s output values (range 0 to 255) transferred to Excel via the DLL.
All the calculations to get TrueRMS AC/DC etc. values have to be done in Excel.
At the beginning of each ‘frame’ you’ll get the following data:
Sample rate [Hz]
Full scale [mV]
GND level [counts]
These three first rows contain the scope settings and the rest of the rows contain the raw oscilloscope data in A/D converter counts (0…255).
Using the Sample rate, Full scale and GND level values it is possible to convert the waveform data into engineering units (e.g. Volts and seconds) for further analysis.
