公开(公告)号：US10921293B2

公开(公告)日：2021-02-16

申请号：US16341035

申请日：2017-10-10

申请人： COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

发明人： Philippe Bredif ,  Ekaterina Iakovleva ,  Dominique Lesselier ,  Olivier Roy ,  Kombossé Sy

IPC分类号： G01N29/44 ,  G01N29/06 ,  G01N29/26 ,  G01N29/07 ,  G01N29/04 ,  G01S15/89 ,  G01H5/00

摘要： A method and device are provided for determining a mode of detection of an element that reflects ultrasonic waves, wherein it comprises at least the following steps: For each point P of a given volume Zr, determining an ultrasonic field value Aijm (P) for N emitter-receiver pairs (i, j) and for one detection mode m,
computing a number C m ⁡ ( P , n → ) = ∑ i , j = 1 N ⁢ ⁢ c ij m ⁡ ( P , n → ) of reflections of the wave where c ij m = { 1 if ⁢ ⁢  n → ij m ⁡ ( P ) · n →  = 1 0 if ⁢ ⁢ not with {right arrow over (n)}ijm(P) the normal formed by the “forward” direction {right arrow over (d)}i and the “backward” direction {right arrow over (d)}j of the ultrasonic wave emitted and reflected by the reflecting element, computing the energy value Em(P,{right arrow over (n)}) for each point P of the zone Zr, with {right arrow over (n)} and for a plurality of modes m with E m ⁡ ( P , n → ) = ∑ i , j = 1 N ⁢ ⁢ A ij m ⁡ ( P ) ⁢ c ij ⁡ ( P , n → ) comparing the obtained energy values Em(P,{right arrow over (n)}) to one or more threshold values Es, selecting the one or more energy values that meet the one or more threshold-value conditions, and deducing a mode to be used to construct a representation of the reflecting element.