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How ultrasound imaging works |
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Visiting Research Scientist in the Department of Electrical and Computer Engineering |
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Summary: This is a project conceived, designed and fabricated by Rebecca Willett and Felix Lu. It was designed for the FEMMES and Sally Ride Festivals to help grade and middle school girls grasp what the concepts behind ultrasound imaging were. In this project, students will be able to determine the approximate shape of any unknown object by indirect measurements and keeping track of the measurement conditions.
The Basic Physics: Ultrasound imaging essentially works by measuring the time it takes for reflected acoustic waves to return from different parts of the unknown object. By knowing/estimating the speed of sound in the medium the sound waves travel through and measuring the time it takes to return, the distance of the object at a point can be calculated. Repeating this process quickly gives a better approximate image of the object. |
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Feel free to use/improve on this basic design for your own projects/demos/experiments. We would love to hear from you if you do. Comments and suggestions are welcome. |
