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A hybrid boundary element model is proposed for the simulation of large piezoelectric micromachined ultrasonic transducer (PMUT) arrays in immersion. Multiphysics finite element method (FEM) simulation of a single-membrane structure is used to determine stiffness and piezoelectrically induced actuation loading of the membranes. To simulate the arrays of membranes in immersion, a boundary element method...
Forward looking (FL) capability is desired in IVUS catheters to enable real time volumetric visualization of especially nearly or fully blocked arteries to guide interventions. The addition of side looking (SL) capability in the same catheter would be valuable to locate the device with respect to vessel walls and provide a conventional image to the clinicians. A single chip CMUT-on-CMOS array may...
Finite Element Analysis (FEA) of CMUT arrays offers flexibility with membrane geometry, but it can become computationally expensive as the transducer array and fluidic space increases in size. The objective is to combine the modeling flexibility of 3D FEA with the computational effectiveness of 2D numerical methods to analyze and design CMUT arrays with arbitrary membrane shapes. Effective numerical...
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