| 摘要 |
Fluid flow apparatus (10), including a one-piece fluid displacement member (42) removably mounted in a section of fluid conduit (20) so that no materia l joining is required. The displacement member is removably and replaceably mounted in the conduit section so that one displacement member can be replac ed by one or more other displacement members and thereby accommodate a very bro ad range of fluid flows. The mounting or support (44) is provided at the downstream end of the displacement member which eliminates disturbances in t he fluid flow around the displacement member and thereby provides for a highly stable signal. The signal is obtained via measurement taps (24, 26) in the wall of the conduit so that no measurement taps are required in or through t he displacement member.
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