This paper presents oscillation control electronics for Frequency Modulation Atomic Force Microscope (FMAFM). It presents a Phase Locked Loop circuit performing the function of Frequency Control and its complete analysis.
Bhushan, Gaurav; Rangoonwala, Adnan; Khan, Aalim; and Bhowmick, Shomnath
"Oscillation control electronics for a Quartz Tuning Fork Atomic Force Microscope (AFM),"
International Journal of Electronics and Electical Engineering: Vol. 1
, Article 15.
Available at: https://www.interscience.in/ijeee/vol1/iss2/15