Measuring and testing – Volume or rate of flow – By measuring vibrations or acoustic energy
Reexamination Certificate
2011-05-17
2011-05-17
Patel, Harshad (Department: 2855)
Measuring and testing
Volume or rate of flow
By measuring vibrations or acoustic energy
C702S079000
Reexamination Certificate
active
07942068
ABSTRACT:
In one embodiment, a multi-path ultrasonic flow meter for determining the flow rate of a fluid in a conduit is disclosed comprising at least two transducer pairs attached to the conduit at two chord locations, one greater than and one less than a mid-radius chord, wherein the composite ratio the two path velocities to the flow rate is substantially constant over the range of Reynolds numbers. In another embodiment, a method of determining the flow rate of a fluid in a conduit is disclosed comprising the steps of determining a composite velocity by determining a weighted average of a plurality of path velocities, determining a chord velocity ratio based on the path velocities, determining a profile correction factor based on the composite velocity and the chord velocity ratio, and determining the flow rate based on the composite velocity and the profile correction factor.
REFERENCES:
patent: 3555899 (1971-01-01), Yamamoto et al.
patent: 3564912 (1971-02-01), Malone et al.
patent: 3940985 (1976-03-01), Wyler
patent: 4078428 (1978-03-01), Baker et al.
patent: 4102186 (1978-07-01), Brown
patent: 4103551 (1978-08-01), Lynnworth
patent: 4300401 (1981-11-01), Pedersen
patent: 4336719 (1982-06-01), Lynnworth
patent: 4432243 (1984-02-01), Lowell et al.
patent: 4596133 (1986-06-01), Smalling et al.
patent: 4646575 (1987-03-01), O'Hair et al.
patent: 4754650 (1988-07-01), Smalling et al.
patent: 4856321 (1989-08-01), Smalling et al.
patent: 5546812 (1996-08-01), Drenthen et al.
patent: 5546813 (1996-08-01), Hastings et al.
patent: 5597962 (1997-01-01), Hastings et al.
patent: 5639972 (1997-06-01), Hastings et al.
patent: 5705753 (1998-01-01), Hastings et al.
patent: 5987997 (1999-11-01), Roskam et al.
patent: 6047602 (2000-04-01), Lynnworth
patent: 6089104 (2000-07-01), Chang
patent: 6330831 (2001-12-01), Lynnworth et al.
patent: 6626049 (2003-09-01), Ao
patent: 6732595 (2004-05-01), Lynnworth
patent: 6816808 (2004-11-01), Freund et al.
patent: 6950768 (2005-09-01), Freund et al.
patent: 7000485 (2006-02-01), Ao et al.
patent: 7096135 (2006-08-01), Ao et al.
patent: 7152490 (2006-12-01), Freund et al.
patent: 7290455 (2007-11-01), Groeschel
patent: 7299120 (2007-11-01), Serebrennikov et al.
patent: 2004/0123666 (2004-07-01), Ao et al.
patent: 2007/0136008 (2007-06-01), Liu et al.
patent: 2008/0134798 (2008-06-01), Li et al.
patent: 2008/0156107 (2008-07-01), Ao et al.
patent: 2009/0000392 (2009-01-01), Zhou et al.
patent: 2009/0007625 (2009-01-01), Ao et al.
patent: 19632165 (1998-02-01), None
patent: WO-2005026666 (2005-03-01), None
Methodology for Developing a High-Precision Ultrasound Flow Meter and Fluid Velocity Profile Reconstruction; Emmanuelle Mandard et al., IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 55, No. 1, Jan. 2008, pp. 161-172.
Computer Simulations of Ultrasonic Flow Meter Performance in Ideal and Non-Ideal Pipeflows; T.T. Yeh et al., Fluid Flow Group Process Measurements Division Chemical Science and Technology Laboratory National Institute of Standards and Technology Gaithersburg, Maryland, 1997 ASME Fluids Engineering Division Summer Metter FEDSM'97 Jun. 22-26, 1997.
The Daniel Seniorsonic Multipath Gas Flowmeter, Daniel SeniorSonic, Section 1.1 Product Overview.
EP10155720, European Search Report and Written Opinion, Jul. 19, 2010.
Ao Xiaolei Shirley
Caravana Robert
Furlong Edward Randall
Khrakovsky Oleg Alexander
McDonald Benjamin Edward
Conklin Mark A.
GE Infrastructure Sensing Inc.
Global Patent Operation
Patel Harshad
LandOfFree
Method and system for multi-path ultrasonic flow rate... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and system for multi-path ultrasonic flow rate..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for multi-path ultrasonic flow rate... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2675961