Abstract
A circular array of prototype divergent electrostatic ultrasonic transducer elements has been used to produce tomographic images of air flows in a pipe. The array formed part of a 100mm diameter pipe network through which air flows of up to 18 m/s could be achieved. Ultrasonic time of flight measurements in a fan beam geometry were used to reconstruct images of the disruption to air flows produced by various cylindrical bluff bodies with different diameters, using a filtered back-projection algorithm with a difference technique. The air flows through the pipe and array were modelled using FLOTRAN, and there was good agreement between the models and the reconstructed tomographic data.
| Original language | English |
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| Pages (from-to) | 715-718 |
| Number of pages | 4 |
| Journal | Proceedings of the IEEE Ultrasonics Symposium |
| Volume | 1 |
| Publication status | Published - 2002 |
| Event | 2002 IEEE Ultrasonics Symposium - Munich, Germany Duration: 8 Oct 2002 → 11 Oct 2002 |