Measuring and testing – Volume or rate of flow – Using differential pressure
Patent
1996-10-03
1999-03-23
Biegel, Ronald
Measuring and testing
Volume or rate of flow
Using differential pressure
7386172, G01N 112, G01N 110
Patent
active
058862676
ABSTRACT:
A system for measuring bidirectional flow, including backflow, of fluid in a conduit. The system utilizes a structural mechanism to create a pressure differential in the conduit. Pressure sensors are positioned upstream from the mechanism, at the mechanism, and downstream from the mechanism. Data from the pressure sensors are transmitted to a microprocessor or computer, and pressure differential detected between the pressure sensors is then used to calculate the backflow. Control signals may then be generated by the microprocessor or computer to shut off valves located in the conduit, upon the occurrence of backflow, or to control flow, total material dispersed, etc. in the conduit.
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McGraw-Hill, McGraw-Hill Encyclopedia of Science & Technology, 6th Edition, Published 1987, by McGraw-Hill Book Co. (NY), p. 162, See "Pipe Elbow"& FIG. 7.
E.G. Hauptmann, "Take a Second Look at Elbow Meters for Flow Monitoring", Instruments and Control Systems, Oct. 1978, pp. 47-50, See Entire Document.
SU A, 765,696 (Tyurikov et al.) 30 Sep. 1992, See Abstract and the FIG.
Jp, A, 64-732221 (Onishi) 17 Mar. 1989, See The Abstract and FIG. 1
Amrozowicz Paul D.
Biegel Ronald
Lockheed Martin Idaho Technologies Company
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