| 摘要 |
A gas flow meter includes a cylinder closed at its upper end and slidably supported within a bearing ring. The cylinder side wall is provided with openings. A gas flow is directed into the interior of the cylinder which causes it to rise with respect to the bearing ring and permitting the gas to flow out of the area of the openings exposed above the bearing. During a constant flow of gas through the cylinder the flow rate can be measured by the distance which the cylinder has moved upwardly as indicated on a fixed marker positioned adjacent to the cylinder. An electrical signal is also provided by means of an electrical sensor positioned axially within the cylinder.
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