Difference between Low speed and high speed lockin

T posted on Mon, Dec 6 2010 12:11 PM

rated by 0 users

Hello there,

I have an Icon microscope and I am doing some piezoelectric force microscopy on some very weakly piezoelectric samples.

I find that I get much better results from the Low speed (LS) lockin compared to the high speed for a given frequency (15 kHz).

This I believe is aside from the gain as I really see nothing with the high speed lockin.

What is the main difference between the two lockins which would contribute to this difference I see?

Thanks

Tim