RIU 320 Lecture Notes - Lecture 80: Lead Zirconate Titanate, Degaussing, Grayscale
2 Oct 2020
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It looks like a wedge or a slice of pie, but it doesn"t originate at a point. The sector has a blunted, curved shape at the top. The arc at the top of the image may be a few cm wide: convex or curvilinear array transducer, with these transducers, a sector (wedge-shaped or slice of pie ) image is produced. At the top, the sector is very narrow and tapers to a point: linear phased array, mechanical, and annular phased array, with these transducers, a trapezoidal image shape is produced. The image is flat at the top and becomes progressively wider at increasing depths: vector array transducer. ________ and is used to ________: apodization, reduce lobe artifact. The length of a pulse does not directly influence the: false temporal resolution, true, two imaging systems produce acoustic pulses; one pulse is 0. 4 usec long and the other is 0. 2 usec long.
