| 摘要 |
PURPOSE: A fluid flow meter for liquid is provided to accurately and semipermanently measure the flow rate without periodical correction and use the flow meter at low costs. CONSTITUTION: A fluid flow meter for liquid includes a first orifice(11) generating a first differential pressure, a second side passage pipe(12) positioned at the upper part(14) for flowing into the stable fluid, a flow moving part(17) forming a delicate and precise differential pressure, a solid and light stainless ball(13) mounted in the flow moving part for measuring the reciprocating motion frequency of the ball by using an adjacent sensor(15), so that the passing flow rate is accurately measured, and a display part(16) displaying the required flow rate by a digital according to the set value.
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