A high-precision angular control system for HIFU calibration |
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Institution: | 2. Department of Radiology, Columbia University, New York City, New York, USA;1. Science and Engineering Faculty, Queensland University of Technology, GPO Box 2434, Brisbane 4001, Australia;2. School of Computing, Engineering and Mathematics, University of Western Sydney, Building XB, Locked Bag 1797, Penrith, NSW 2751, Australia |
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Abstract: | A design of high-precision angular position control system for calibrating high intensity focused ultrasound (HIFU) is presented with alignment procedures. Two independent angular controls are achieved by combining a worm gear and a belt gear system. The proposed system verifies alignment by comparing simulation data and experimental data with three different transducers and two different types of hydrophones. The performance of the proposed system is compared to that of a commercial system. The results indicate that the proposed system provides high precision angular alignment (e.g., <0.01 radians) with robust reproducibility regardless of the hydrophone type. |
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