Lock in Amplifier

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Ste_Trat
Posts: 7
Joined: Wed Oct 25, 2017 2:51 pm

Lock in Amplifier

Post by Ste_Trat » Thu Apr 19, 2018 6:50 am

Hi all,

Just came a across a problem which needs a lock in amp, and my red pitaya is just sitting around waiting for a job. After little research i found, that some guys tried to implement a lock-in on the rp, but i haven´t found any detailed description on how to do that.

3 things are coming up to my mind:
- an analog lock in
- a variant with gnuradio
- a fully digital one implemented on the red pitaya

Has anyone of you, in his or her life, came a across an affordable idea or solution within a frequency range of a few tens of kHz ?

any hints are appreciated

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