| 摘要 |
An apparatus and method are disclosed for accurately and economically measuring fluid flow within a closed conduit system. The apparatus includes a means (12) for extracting a proportional amount of the fluid flow, a flowmeter (28) reduced in size from the main conduit system for measuring the flow of the extracted proportional amount of fluid, and a means (22) for returning the extracted portion of fluid to the fluid flow. The fluid flow is extracted and returned without disrupting the fluid flow. A means for promoting the extraction of the proportional amount of fluid flow is provided within said conduit between the means for extracting and returning the fluid flow. |
