Optimization of broadband transducer designs by use of statistical design of experiments

Optimizing designs that involve several parameters is a multidimensional problem, and the optimum setting of one parameter may depend on the exact setting of other parameters. Statistical design of experiments is a methodology to efficiently find the optimum operating points, especially when interaction between terms is important. The methodology is applied to a transducer design problem in order to optimize bandwidth and impulse response. The design problem involves four interactive factors: the acoustic impedances of the first and second matching layer and the appropriate thicknesses of the first and second matching layer