Abstract: A method for inspecting an object by ultrasound transmission, including sweeping an ultrasound beam over a reference part that has the same geometry as the object to be inspected, and measuring the amplitude transmitted through the part to obtain a mapping thereof. The ultrasound beam is amplified with a reference gain. The method further includes determining gain corrections to be added to the reference gain at certain points during the sweeping of the reference part to obtain an ultrasound beam amplitude transmitted through the part which is constant at each point of the mapping, and sweeping an ultrasound beam over the object to be inspected and measuring the transmitted amplitude. The gain applied to the various points during the sweeping corresponds to the reference gain corrected on the basis of said corrections.

Abstract: The invention consists in a method of characterizing a part made of composite material (30), the method comprising a step of determining a characteristic of a longitudinal ultrasound wave (41) traveling along a path within the part (30), and being characterized in that the travel time of a longitudinal ultrasound wave (42) transmitted by the part (30) is measured (E4).

Abstract: The invention relates to a method for inspecting an object by means of ultrasound transmission, comprising the steps consisting in: sweeping an ultrasound beam over a reference part that has the same geometry as the object to be inspected, and measuring the amplitude (1100) transmitted through the part in order to obtain (1200) a mapping thereof, the ultrasound beam being amplified with a reference gain; determining (1300) gain corrections to be added to the reference gain at certain points during the sweeping of the reference part in order to obtain an ultrasound beam amplitude transmitted through the part which is constant at each point of the mapping; and sweeping an ultrasound beam over the object to be inspected and measuring the transmitted amplitude (2100), the gain applied to the various points during the sweeping corresponding to the reference gain corrected on the basis of said corrections.

Abstract: The invention consists in a method of characterizing a part made of composite material (30), the method comprising a step of determining a characteristic of a longitudinal ultrasound wave (41) traveling along a path within the part (30), and being characterized in that the travel time of a longitudinal ultrasound wave (42) transmitted by the part (30) is measured (E4).