A magnetic resonance system has a base unit and a patient bed. The base
unit embodies a magnet system by which magnetic fields can be generated
in an excitation region, these magnetic fields causing nuclear spins in
an examination subject in the excitation region to be excited to emit a
magnetic resonance signal. The patient bed can be moved in a travel
direction relative to the base body over a travel range. By movement of
the patient bed the examination subject can be brought into the
excitation region. A number of base unit coupling elements that are
connected with an evaluation device for evaluation of magnetic resonance
signals are arranged to be stationary at the base unit relative to the
base unit. A number of patient bed coupling elements that are connected
with a local coil for acquisition of the magnetic resonance signal are
arranged on the patient bed so as to be stationary relative to the
patient bed. The base unit coupling elements and the patient bed coupling
elements are arranged and fashioned such that the magnetic resonance
signal acquired by the local coil can be fed via the patient bed coupling
elements and the base unit coupling elements to the evaluation device
when and as long as the patient bed has moved by a predetermined segment
of the travel range. A degree of coupling with which the patient bed
coupling elements and the base unit coupling elements and coupled with
one another in total is constant within the segment of the travel range.