Alignment method for the accurate and precise quantification of tip-surface forces

We introduce a procedure to determine accurate and precise force-distance curves in dynamic force measurements utilizing sharp tip. While single are prone systematic, often unnoticed errors, we present their self-consistent retrieval by an alignment using repetitive with the probe oscillating at varied amplitude. By processing model data, show that provides valid curve, actual oscillation amplitude, fully compensates thermal drift. The benefit of method is demonstrated application experimental data.