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Rigol HDO1000 and HDO4000 12bit oscilloscopes launched in China

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Frunse:
Yeah did it ;)

Very nice tool, and again thank you for youre Work and for Sharing it with us noobs ;)

Robert

vokars:
 :-+

Frunse:
So if i am thinking right,

also possible to make an  Curvetracer this way to masure Transistors or diodes ?

With an nice Plot of the measuring Curves ?

The XY Mode of an Scope does this job too but i would realy like to have an nice Bodeplot of the Curves with right scale like on Transistor datasheets.

Possible with Python?

Robert

vokars:

--- Quote ---The XY Mode of an Scope does this job too but i would realy like to have an nice Bodeplot of the Curves with right scale like on Transistor datasheets.

Possible with Python?
--- End quote ---

It should not be a problem. Python is very flexible. You could use the Bode Plot blueprint and expand a second channel (would be necessary for precise measurement anyway). Measure current with shunt resistor. Instead of frequency here voltage has to be controlled in the signal source. Apply DC voltage with a remote controllable power supply or, as a workaround, use a function generator with square wave signal and low frequency (< 0.1 Hz, lower than the measurement time of the oscilloscope, choose phase appropriately) if the function generator cannot generate a simple DC voltage.

And of course it is possible to apply a sawtooth from the function generator and measure the current with a shunt resistor. The trigger is external. In this case you will need another script that can download the two waveforms from the oscilloscope. The sampling rate should not be too high for this so that you don't need too much memory. The sampling rate in Rigol can be reduced indirectly by reducing the memory. The formula for this is in the user manual.

Frunse:
Thanks,
i will go into it after i done my running Projects, seems need some time to deal with it.

But will be realy fun to play with the Instruments and Python, also have an nice UDP3305S to use for this ;)

Robert

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