Disclosed is an ultrasound system (1) comprising an ultrasound transducer array (110). The array comprises a carrier (160) carrying an actuator arrangement comprising a plurality of actuators, each actuator comprising a material (54) having an adjustable shape in response to an electromagnetic stimulus a plurality of ultrasound transducer element tiles (100) on the actuator arrangement such that each actuator is arranged to adjust the orientation an ultrasound transducer element tile in response to said electromagnetic stimulus, each ultrasound transducer element tile comprising at least one ultrasound transducer element and a plurality of capacitive sensors (70), each capacitive sensor comprising a first sensing electrode (141) on a surface (103) of one of the ultrasound transducer element tiles facing a surface portion (162) of the carrier and a second sensing electrode (161, 16Γ) οη said surface portion. The actuator arrangement further comprises a controller arrangement for each actuator, the controller arrangement adapted to generate the electromagnetic stimulus for said actuator in response to capacitive sensor data provided by a capacitive sensor having a first sensing electrode on the surface of the ultrasound transducer element tile mounted on said actuator. A method of controlling such a system is also disclosed.Linvention concerne un système ultrasonore (1) comprenant un réseau de transducteurs à ultrasons (110). Le réseau comprend un support (160) portant un agencement dactionneurs comprenant une pluralité dactionneurs, chaque actionneur comprenant un matériau (54) ayant une forme réglable en réponse à un stimulus électromagnétique une pluralité de pavés délément de transducteur à ultrasons (100) sur lagencement dactionneurs de telle sorte que chaque actionneur est agencé pour ajuster lorientation dun pavé délément de transducteur à ultrasons en réponse audit stimulus électromagnétique, chaque pavé délément de transducteur à ultrasons comprenant au moin
