| 摘要 |
A flowmeter is provided that comprises a leadframe assembly ( 140 ) and a body ( 144 ) disposed at least partially around the leadframe assembly ( 140 ). The body ( 144 ) has a flow passage therethrough that comprises a first channel ( 178 ) having a first port ( 166 ), a second channel ( 180 ) having a second port ( 168 ), and a flow altering element ( 182 ) disposed within the second channel ( 180 ). First and second pressure sensors ( 174 and 176 ) are disposed within the body ( 144 ) and coupled to the leadframe assembly ( 140 ) for measuring a first pressure within the first channel ( 178 ) and a second pressure within the second channel ( 180 ), respectively. An integrated circuit ( 155 ), which is coupled to the leadframe assembly ( 140 ), to the first pressure sensor ( 174 ), and to the second pressure sensor ( 176 ), is configured to determine the rate of flow through the flow passage from the first pressure and the second pressure.
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