Tell us how your experiment is running with Red Pitaya
#6974 by accobrasp
Fri Jan 06, 2017 9:53 am
Hello,
We need to use a bridge RLC with frequencies of sweeping ultra low, ideally down to the millihertz.
Which is the usable minimal frequency at present, and can one intend to modify the application to reach such frequencies

Thank you
#6982 by Nils Roos
Fri Jan 06, 2017 10:08 pm
Hi,

from a look through the impedance analyzer sources (web-app controllerhf.so and lcr program), I'd expect that the application will not work correctly below 1Hz, because the sampling logic will be misconfigured at smaller frequencies.

The lowest frequency that the generator logic of the RP can produce is 0.116Hz. It is possible to adapt the application to work at that frequency, but if you need to go lower, you would have to design your own generator FPGA logic.

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