Fluid flow measurement and control

    公开(公告)号:AU2014215580A1

    公开(公告)日:2015-08-13

    申请号:AU2014215580

    申请日:2014-02-03

    Applicant: FLUIDNET CORP

    Abstract: In accordance with one embodiment, a controller in a fluid delivery system controls magnitudes of pressure in a first volume and a second volume. The first volume is of a known magnitude. The second volume is of an unknown magnitude and varies. The controller estimates a temperature of gas in the first volume and a temperature of gas in the second volume based on measurements of pressure in the first volume and measurements of pressure in the second volume. The controller then calculates a magnitude of the second volume based on measured pressures of the gases and estimated temperatures of gases in the first volume and the second volume. At multiple different times during a delivery phase, the controller temporarily discontinues application of the pressure to the chamber to calculate how much of the fluid in the chamber has been pumped to the target recipient.

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