Finite Element Method (FEM) offers the possibility to appraise the characteristics of ultrasonic measurement systems while still in development. Depending on the geometry two-dimensional slices, rotationally-symmetrical models or three-dimensional constructions are simulated.
Doing this both existing CAD-geometries and specially created models can be used. Depending on complexity and objective the FEM-simulation is accomplished by analytic, semi-analytic or script-based modelli
Many questions in the area of FEM-simulation are concerned with the optimization of i.e. transducer geometries or the combination of different materials. Here, besides the pure FEM-simulation, also a flexible simulation-model and an adapted optimization strategy are necessary.
When working with script based modelling, the model is constructed so that all properties (size and shape, material, stimulus), relevant for the optimization, can be varied by the algorithms and that an optimum can be found. Depending on the problem different optimization strategies are used, i.e. genetic algorithms or gradient descent.