Iimpedance spectroscopy

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ozcarlosa
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Joined: Fri Sep 13, 2019 2:49 am

Iimpedance spectroscopy

Post by ozcarlosa »

Can I to implement a impedance spectroscopy system with PS 2204A using oscilloscope and function generator functionalities? (I need only 10MHz BW)

AndrewA
PICO STAFF
PICO STAFF
Posts: 401
Joined: Tue Oct 21, 2014 3:07 pm

Re: Iimpedance spectroscopy

Post by AndrewA »

Hi,
You want to try doing a spectrum plot of real and imaginary parts of the signal like image on the top right of - https://en.wikipedia.org/wiki/Dielectric_spectroscopy?

We have some maths channel examples that do this already for power factor application - https://www.picotech.com/support/topic21771.html?&p=141817&hilit=power+factor#p141722
But these maths channels won't in FFT mode in PicoScope 6. As they calculate the average over a waveform buffer, not per cycle.
So I would try using the 3rd party FRA4Picoscope application with this new tool-
https://www.eevblog.com/forum/testgear/rlc-impedance-viewer-for-picoscope-bode-plot-data/msg2190516/#msg2190516
Regards Andrew
Technical Specialist

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