force spectroscopy alternating current force spectroscopy CHMO:0002676 Spectroscopy where an atomic force microscope is used to measure the force experienced by a sample. The method involves the application of a small sinusoidal oscillating force to the tip via a magnetic field created by a conducting coil which interacts with a magnetic particle glued on the backside of the cantilever and measuring the change in amplitude during the approach and retraction of the sample. AC force spectroscopy AC-modulated force spectroscopy ac-mode force spectroscopy https://orcid.org/0000-0001-5985-7429 2010-01-15T04:32:27Z alternating-current force spectroscopy ac mode force spectroscopy