The invention relates to a dynamic-mode surface (12) scanning method in
which a cantilever (10) provided with a probe (18) is non-positively
coupled to the surface and is made to oscillate in a resonant fashion
using positive feedback, wherein the resonant oscillation contains at
least one higher harmonic whose frequency represents an integer multiple
of the basic resonance frequency of the cantilever which is force-coupled
to the surface. According to the invention, the amplitude or the phases
of the at least one higher harmonic oscillation is determined as a
control variable in order to regulate the distance between the probe (18)
and the surface (14).