HIFU Focus Shift

Data from experiment and COMSOL Multiphysics simulation of an HIFU transducer operated at a frequence of 1MHz to observe the focus shift position caused by an acoustic liquid lens. Experiment: Images of the sound field created using Schlieren photography. Analysis of the images reveals the position of the focal point as well as the elliptical extent of the ablation zone. Simulation: Simulation of the acoustic pressure and heat transfer in the water phantom depending on the lens volume.本数据集包含工作频率为1MHz的高强度聚焦超声（High Intensity Focused Ultrasound, HIFU）换能器的实验与COMSOL Multiphysics仿真数据，用于观测声学液体透镜引发的焦点偏移位置。 实验环节：采用纹影摄影（Schlieren photography）采集声场图像，对图像进行分析可得到焦点位置以及消融区域的椭圆范围。 仿真环节：针对不同体积的声学液体透镜，仿真水模内的声压分布与传热过程。