title: TRANSDUCER FIELD IMAGING USING ACOUSTOGRAPHY.
abstract: A common current practice for transducer field mapping is to scan, point-by-point, a hydrophone element in a 2D raster at various distances from the transducer radiating surface. This approach is tedious, requiring hours of scanning time to generate full cross-sectional and/or axial field distributions. Moreover, the lateral resolution of the field distribution image is dependent on the indexing steps between data points. Acoustography is an imaging process in which an acousto-optical (AO) area sensor is employed to record the intensity of an ultrasound wavefield on a two-dimensional plane. This paper reports on the application of acoustography as a simple but practical method for assessing transducer field characteristics. A case study performed on a commercial transducer is reported, where the radiated fields are imaged using acoustography and compared to the corresponding quantities that are predicted numerically.
authors: Santec Systems, Inc., 2924 Malmo Drive, Arlington Heights, IL.
authors: Jaswinder S
authors: JS
authors: Sandhu
authors: Robert W
authors: RW
authors: Schoonover
authors: Joshua I
authors: JI
authors: Weber
authors: J
authors: J
authors: Tawiah
authors: Vitaliy
authors: V
authors: Kunin
authors: Mark A
authors: MA
authors: Anastasio
keywords: Acoustography; Nondestructive Testing; Quality Assurance; Ultrasonic(s)
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