| 摘要 |
A flowmeter device for measuring a flow rate of a fluid includes a conduit for the fluid flow. The conduit is characterized by a cross-sectional area and includes at least one section within which the cross-sectional area is different from the cross-sectional area of at least one other section of the conduit. The device also includes a reference tube separated from the conduit by a wall and at least one opening in the wall between the section and the reference tube. The device includes a flexible diaphragm forming a space between the diaphragm and a region of the wall at the section of the conduit, and which includes the opening, to inhibit flow of the fluid between the conduit and the reference tube. The diaphragm is deformable so as to allow measuring a parameter associated with the deformation of the diaphragm in response to a difference between fluid pressure in section and fluid pressure in the reference tube in fluid pressure between a fluid flowing through the section of the conduit and a fluid contained in the reference tube. |
