Figure 62: The angular acoustic wave front will strike each receive element at a different time
As the wave progresses across the face, each receive element will see the wave at a slightly different
time and thus a slightly different phase. The formed beam is steered in the direction of the acoustic
wave by selectively adding delay to each receive element’s data until the data is coherent and in
phase. In the figure, above, receive element 1 would have the most delay applied, whereas receive
element 8 would have no delay; thus a ‘virtual array’ will be formed.
Page 64 of 210
Version 5.0 Rev r002
Date 05-08-2014
Part No. 96000001
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