  We devise an approach to measure the polarization of nuclear spins via
conductance measurements. Specifically, we study the combined effect of
external magnetic field, nuclear spin polarization, and Rashba spin-orbit
interaction on the conductance of a quantum wire. Nonequilibrium nuclear spin
polarization affects the electron energy spectrum making it time-dependent.
Changes in the extremal points of the spectrum result in time-dependence of the
conductance. The conductance oscillation pattern can be used to obtain
information about the amplitude of the nuclear spin polarization and extract
the characteristic time scales of the nuclear spin subsystem.
