×

Fluid flow impedance monitoring system

  • US 5,609,576 A
  • Filed: 09/13/1994
  • Issued: 03/11/1997
  • Est. Priority Date: 09/13/1994
  • Status: Expired due to Term
First Claim
Patent Images

1. A system for monitoring impedance to flow in a fluid delivery system in which a flow control device acts on a fluid conduit to control the flow of fluid through the conduit, the system comprising:

  • a pressure sensor coupled to the conduit for providing pressure signals in response to the pressure sensed in the conduit;

    a memory that provides a flow waveform corresponding to the flow of fluid in the conduit;

    a processor that receives the pressure signals and the flow waveform, processes those pressure signals with the flow waveform, determines the impedance to flow based on said processing, and extracts a resistance from the determined impedance; and

    a display that displays a value representing the extracted resistance.

View all claims
  • 14 Assignments
Timeline View
Assignment View
    ×
    ×