Abstract: A device, and corresponding test method, for testing metallurgical products including an ultrasonic sensor including a plurality of elementary transducers which can be operated independently of each other and are distributed in accordance with a two-dimensional pattern is described. A first electronic component is configured to excite each of the elementary transducers in accordance with at least one temporal law corresponding to a burst of ultrasonic waves in a line of sight. A second electronic component is configured to process at least a portion of the signals captured by each of the elementary transducers. Each temporal law is arranged such that the corresponding burst produces a beam of ultrasonic waves which is generally divergent about the line of sight on moving away from the ultrasonic sensor.

Abstract: A device, and corresponding test method, for testing metallurgical products including an ultrasonic sensor including a plurality of elementary transducers which can be operated independently of each other and are distributed in accordance with a two-dimensional pattern is described. A first electronic component is configured to excite each of the elementary transducers in accordance with at least one temporal law corresponding to a burst of ultrasonic waves in a line of sight. A second electronic component is configured to process at least a portion of the signals captured by each of the elementary transducers. Each temporal law is arranged such that the corresponding burst produces a beam of ultrasonic waves which is generally divergent about the line of sight on moving away from the ultrasonic sensor.

Abstract: An installation for non-destructive control for a metal tube in which an ultrasound sensor includes transducer elements that can be excited each at selected times. A downstream circuit for processing the sensed signals analyzes a global response of the tube at ultrasonic excitation. The transducer elements are only excited to produce a single emission and the downstream circuit recovers the samples of the sensed signals each through a transducer element, to associate therewith successive times respectively offset, to calculate plural global responses of the tube at a single emission, by modifying the shifts between the successive times.

Abstract: An installation for non-destructive control for a metal tube in which an ultrasound sensor includes transducer elements that can be excited each at selected times. A downstream circuit for processing the sensed signals analyzes a global response of the tube at ultrasonic excitation. The transducer elements are only excited to produce a single emission and the downstream circuit recovers the samples of the sensed signals each through a transducer element, to associate therewith successive times respectively offset, to calculate plural global responses of the tube at a single emission, by modifying the shifts between the successive times.