| 摘要 |
<p>An extended range mass flowmeter comprising a connecting conduit functioning as a flow restrictor along its length for serially connecting inlet and outlet conduits. An essentially constant volume recirculating device connected to an intermediate point in said connecting conduit for recirculating a constant volumetric flow rate of fluid in said connecting conduit such that an additive and subtractive constant and equal component of volumetric flow rate of fluid is provided upstream and downstream of said intermediate point. A differential pressure measuring device connected between points located upstream and downstream of said intermediate point provides measurements linearly proportional to true mass flow.</p> |
