| 摘要 |
The system for measurement of a fluid flow through a pipe computes the difference between ultrasonic travel times in one direction and in another. Within the pipe there are two sets (S1,S2) of planes of at least two parallel and offset planes. Each plane (E1-1-E1-4,E2-1-E2-4) is parallel to the pipe longitudinal axis (l). In each plane, at least two paths are at an angle to each other. Ultrasound converters (C1-C16) and/or reflection surfaces are at the pipe wall. The measured ultrasound travel times and/or their differences give the physical assumptions for the pipe flow using a reconstruction algorithm, the flow profile and/or the temperature distribution and/or turbulence. |
