Principles of Lock-in Detection

[@djsaloboy]

Excellent explanation of the week award is granted for this video

[@ahmedgaafar5369]

wow what a great tutor...thanks a lot ...this was extremely useful.

[@hamdihabbouza9028]

thank you so much..that was very helpful!!

[@pendalink]

Such a good video, thank you

[@liujunyan8244]

great video, thanks

[@abhishekbhandari6362]

thank you

[@mrnarason]

Not surprised that German speaker pronounces Fourier as they do :)

[@BB-hc3zw]

thanks！！！

[@live4Cha]

gut