Apparatus and method for measuring unsteady pressures within...

Data processing: measuring – calibrating – or testing – Measurement system – Measured signal processing

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C702S045000, C702S048000, C073S861000, C073S861180, C073S861220

Reexamination Certificate

active

07058549

ABSTRACT:
An apparatus10is provided that includes a spatial array of at least two unsteady pressure sensors18–21placed at predetermined axial locations x1–xNdisposed axially along a pipe14for measuring at least one parameter of a fluid12flowing in the pipe14. The pressure sensors18–21comprise a plurality of pressure sensing elements such as piezoelectric film sensors23for measuring unsteady pressures associated with acoustical pressures and/or vortical disturbances. The sensing elements are disposed circumferentially around the pipe and spaced a predetermined distance. The pressure signals P1(t)–PN(t) provided by the pressure sensors18–21are processed by a processing unit to provide an output signal indicative of a parameter of the fluid.

REFERENCES:
patent: 4048853 (1977-09-01), Smith et al.
patent: 4080837 (1978-03-01), Alexander et al.
patent: 4248085 (1981-02-01), Coulthard
patent: 4445389 (1984-05-01), Potzick et al.
patent: 4896540 (1990-01-01), Shakkottai et al.
patent: 5040415 (1991-08-01), Barkhoudarian
patent: 5083452 (1992-01-01), Hope
patent: 5218197 (1993-06-01), Carroll
patent: 5285675 (1994-02-01), Colgate et al.
patent: 5355083 (1994-10-01), George et al.
patent: 5367911 (1994-11-01), Jewell et al.
patent: 5398542 (1995-03-01), Vasbinder
patent: 5524475 (1996-06-01), Kolpak et al.
patent: 5526844 (1996-06-01), Kamen et al.
patent: 5541510 (1996-07-01), Danielson
patent: 5591922 (1997-01-01), Segeral et al.
patent: 5741980 (1998-04-01), Hill et al.
patent: 5770805 (1998-06-01), Castel
patent: 5770806 (1998-06-01), Hiismaki
patent: 5835884 (1998-11-01), Brown
patent: 5845033 (1998-12-01), Berthold et al.
patent: 5948959 (1999-09-01), Peloquin
patent: 6016702 (2000-01-01), Maron
patent: 6151958 (2000-11-01), Letton et al.
patent: 6202494 (2001-03-01), Riebel et al.
patent: 6354147 (2002-03-01), Gysling et al.
patent: 6862920 (2002-03-01), Gysling et al.
patent: 6378357 (2002-04-01), Han et al.
patent: 6435030 (2002-08-01), Gysling et al.
patent: 6443226 (2002-09-01), Diener et al.
patent: 6450037 (2002-09-01), McGuinn et al.
patent: 6463813 (2002-10-01), Gysling
patent: 6536291 (2003-03-01), Gysling et al.
patent: 6550342 (2003-04-01), Croteau et al.
patent: 6558036 (2003-05-01), Gysling et al.
patent: 6587798 (2003-07-01), Kersey et al.
patent: 6601458 (2003-08-01), Gysling et al.
patent: 6609069 (2003-08-01), Gysling
patent: 6691584 (2004-02-01), Gysling et al.
patent: 6698297 (2004-03-01), Gysling
patent: 6732575 (2004-05-01), Gysling et al.
patent: 6782150 (2004-08-01), Davis et al.
patent: 6813962 (2004-11-01), Gysling et al.
patent: 6837098 (2005-01-01), Gysling et al.
patent: 6868737 (2005-03-01), Croteau et al.
patent: 6889562 (2005-05-01), Gysling et al.
patent: 6898541 (2005-05-01), Gysling et al.
patent: 2002/0095263 (2002-07-01), Gysling et al.
patent: 2002/0100327 (2002-08-01), Kersey et al.
patent: 2002/0123852 (2002-09-01), Gysling et al.
patent: 2002/0129662 (2002-09-01), Gysling et al.
patent: 2002/0134144 (2002-09-01), Gysling et al.
patent: 2002/0152802 (2002-10-01), Gysling et al.
patent: 2002/0194932 (2002-12-01), Gysling et al.
patent: 2003/0038231 (2003-02-01), Bryant et al.
patent: 2003/0066359 (2003-04-01), Gysling et al.
patent: 2003/0084707 (2003-05-01), Gysling
patent: 2003/0089161 (2003-05-01), Gysling
patent: 2003/0136186 (2003-07-01), Gysling
patent: 2003/0154036 (2003-08-01), Gysling
patent: 2004/0016284 (2004-01-01), Gysling et al.
patent: 2004/0069069 (2004-04-01), Croteau et al.
patent: 2004/0074312 (2004-04-01), Gysling
patent: 2004/0144182 (2004-07-01), Gysling
patent: 2004/0167735 (2004-08-01), Rothman et al.
patent: 2004/0168523 (2004-09-01), Fernald et al.
patent: 2004/0182139 (2004-09-01), Gysling et al.
patent: 2004/0194539 (2004-10-01), Gysling
patent: 2004/0199340 (2004-10-01), Kersey et al.
patent: 2004/0210404 (2004-10-01), Gysling et al.
patent: 2004/0255695 (2004-12-01), Gysling et al.
patent: 2005/0000289 (2005-01-01), Gysling et al.
patent: 2005/0005712 (2005-01-01), Gysling et al.
patent: 2005/0005713 (2005-01-01), Winston et al.
patent: 2005/0011258 (2005-01-01), Gysling et al.
patent: 2005/0011283 (2005-01-01), Gysling et al.
patent: 2005/0011284 (2005-01-01), Gysling et al.
patent: 2005/0033545 (2005-02-01), Gysling
patent: 2005/0039520 (2005-02-01), Davis et al.
patent: 2005/0050956 (2005-03-01), Gysling et al.
patent: 2005/0072216 (2005-04-01), Engel
patent: 93/14382 (1993-07-01), None
patent: WO 99/067629 (1999-12-01), None
patent: 02/95263 (2001-01-01), None
“Noise and Vibration Control Engineering Principles and Applications”, Leo L. Beranek and Istvan L. Ver, A. Wiley Interscience Publication, pp. 537-541, Aug. 1992.
“Two Decades of Array Signal Processing Research”, The Parametric Approach, H. Krim and M. Viberg, IEEE Signal Processing Magazine, Jul., 1996, pp.67-94.
“Development of an array of pressure sensors with PVDF film, Experiments in Fluids 26”, Jan. 8, 1990, Springer-Verlag.
“Viscous Attentuation of Acoustic Waves in Suspensions” by R.L. Gibson, Jr. and M.N. Toksoz.
Piezo Film Sensors Technical Manual-Provided by Measurement Specialties, Inc.
Sonar-Based Volumetric Flow Meter For Pulp and Paper Applications-Daniel L. Gysling & Douglas H. Loose-Dec. 13, 2003.
Sonar-Based Volumetric Flow Meter for Chemical and Petrochemical Applications-Daniel L. Gysling & Douglas H. Loose-Feb. 14, 2003.
New Flowmeter Principle-By Walt Boyes-Flow Control Magazine-Oct. 2003 Issue.
SONAR Gets into the Flow-Daniel L. Gysling and Douglas H. Loose-Modern Process-Jan. 2004.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Apparatus and method for measuring unsteady pressures within... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for measuring unsteady pressures within..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for measuring unsteady pressures within... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3687023

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.