  Following the novel introduced concept of the active carriers, this paper
brings forward a technique toward the manipulability of an internally
piezo-equipped active spherical carrier subjected to the progressive acoustic
plane waves as the handling contactless asset. It is assumed that the
piezoelectric part of the active carrier may be actuated as a bi-sectional body
(i.e., two continuous hemispherical parts), with prescribed phase difference,
and the polar position of the imaginary separating plane may be altered. This
issue brings about an asymmetry in the dynamics of the problem which leads to
emergence of position/frequency dependent acoustic radiation torque. It is
obtained that as the carrier is excited by imposing harmonic voltage with the
same amplitude and a $\pi$-radians phase difference,the zero-radiation force
situation is obtained for a specific amplitude and phase of voltage as a
function of frequency. This situation is treated as a criterion to determine
the optimal amplitude of operation voltage. It is shown that the net force's
direction exerted on the activated carrier may be steered along any desired
orientation, assuming the fixed direction of the incident wave field. The
explained method of excitation and controllability of the spatial position of
the divisor plane can possibly be a breakthrough in acoustic handling of active
carriers. Noticeably, by this new technique, the single beam acoustic based
contact-free methods and their applications in association with the concept of
active carriers are now one step forward.
