The present disclosure generally relates to the field of sensor technology. More specifically, the present disclosure relates to a sensor arrangement and a catheter comprising such a sensor arrangement. An embodiment of the sensor arrangement comprises: at least two displaced first sensors arranged in parallel in a first plane and adapted to measure a quantity of a fluid flow； and a control unit adapted to determine, from the measured quantity of the fluid flow, information indicating at least a range of directions of the fluid flow in two dimensions.
