(Color online) COMSOL simulation of the acoustic lens with a 100 kHz incident wave. X and Y axes are position in meters. Color scale is pressure in arbitrary units.
Photograph of the fabricated acoustic lens. Scale is in millimeters.
Flow chart of hybrid algorithm and simulation process to design an acoustic lens.
Block diagram of the excitation of the acoustic lens and measurement of the displacements of the fiber-disk with scanning laser vibrometer.
Schematic of fiber, disk and ring arrangement used in measurement of the focal spot of the acoustic lens. Not to scale.
Photograph of the test up illustrating the position of the scanning laser vibrometer (bottom of photo), fiber-disk, lens and transducer (top).
Photograph of transducer (left), lens, and fiber-disk (right)
Plot of pressure vs X-position at the focus of the acoustic lens. Y-axis scale is in Pascals, and X-axis scale is in millimeters. Error bars represent standard deviation at each location from seven trials.
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