| 摘要 |
Sensor has a narrow throat (66) between entry and exit passages, and has a pressure transducer (60) consisting of two chambers sepd. by a resilient deformable diaphragm (124) and communicating with the respective passages so that variation in flow rate through the throat causes variable displacement of the diaphragm. The mechanical movement of the diaphragm can be transduced (150) for flow rate monitoring or control or for a flow rate rate coordinating system. The sensor is partic. for a parenteral fluid admin. system, for connection between a reservoir and an outlet tube with an i.v. needle.
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