Abstract
The two-dimensional velocity vector using a pulsed ultrasound field can be determined with the invention. The method uses a focused ultrasound field along the velocity direction for probing the moving medium under investigation. Several pulses are emitted and the focused received fields along the velocity direction are cross-correlated. The time shift between received signals is found from the peak in the cross-correlation function and the velocity is thereby determined.
| Original language | English |
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| IPC | G01P5/22; G01P5/24; G01S15/58; G01S15/89; (IPC1-7): G01F1/66; G01P5/00 |
| Patent number | WO2000068697 |
| Filing date | 16/11/2000 |
| Country/Territory | International Bureau of the World Intellectual Property Organization (WIPO) |
| Priority date | 05/10/1999 |
| Priority number | DK19990000634 |
| Publication status | Published - 2000 |