Data processing: measuring – calibrating – or testing – Measurement system – Performance or efficiency evaluation
Reexamination Certificate
2011-05-24
2011-05-24
Nghiem, Michael P (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system
Performance or efficiency evaluation
C702S077000
Reexamination Certificate
active
07949495
ABSTRACT:
A process variable transmitter with diagnostics based on power spectral density (PSD) analysis of a process variable sensor signal is provided. In one embodiment, the process variable transmitter is a pressure transmitter and the diagnostics are used to diagnose impulse line obstruction or impending obstruction. Other diagnostics are also useful such as diagnosing primary element degradation. The sensor signal is digitized and the digitized signal is transferred into the frequency domain. The power of the frequencies on the sensor signal is examined to provide the enhanced diagnostics. In one aspect diagnostics are generated directly with the sensor PSD data. In another aspect, the PSD analysis is used to tune a filter in order to enhance traditional diagnostic algorithms.
REFERENCES:
patent: 3096434 (1963-07-01), King
patent: 3404264 (1968-10-01), Kugler
patent: 3468164 (1969-09-01), Sutherland
patent: 3590370 (1971-06-01), Fleischer
patent: 3618592 (1971-11-01), Stewart
patent: 3688190 (1972-08-01), Blum
patent: 3691842 (1972-09-01), Akeley
patent: 3701280 (1972-10-01), Stroman
patent: 3849637 (1974-11-01), Caruso et al.
patent: 3855858 (1974-12-01), Cushing
patent: 3948098 (1976-04-01), Richardson et al.
patent: 3952759 (1976-04-01), Ottenstein
patent: 3973184 (1976-08-01), Raber
patent: RE29383 (1977-09-01), Gallatin et al.
patent: 4058975 (1977-11-01), Gilbert et al.
patent: 4099413 (1978-07-01), Ohte et al.
patent: 4102199 (1978-07-01), Talpouras
patent: 4122719 (1978-10-01), Carlson et al.
patent: 4249164 (1981-02-01), Tivy
patent: 4250490 (1981-02-01), Dahlke
patent: 4279013 (1981-07-01), Cameron et al.
patent: 4337516 (1982-06-01), Murphy et al.
patent: 4399824 (1983-08-01), Davidson
patent: 4417312 (1983-11-01), Cronin et al.
patent: 4459858 (1984-07-01), Marsh
patent: 4463612 (1984-08-01), Thompson
patent: 4517468 (1985-05-01), Kemper et al.
patent: 4528869 (1985-07-01), Kubo et al.
patent: 4530234 (1985-07-01), Cullick et al.
patent: 4536753 (1985-08-01), Parker
patent: 4540468 (1985-09-01), Genco et al.
patent: 4571689 (1986-02-01), Hildebrand et al.
patent: 4630265 (1986-12-01), Sexton
patent: 4635214 (1987-01-01), Kasai et al.
patent: 4642782 (1987-02-01), Kemper et al.
patent: 4644479 (1987-02-01), Kemper et al.
patent: 4649515 (1987-03-01), Thompson et al.
patent: 4668473 (1987-05-01), Agarwal
patent: 4686638 (1987-08-01), Furuse
patent: 4707796 (1987-11-01), Calabro et al.
patent: 4720806 (1988-01-01), Schippers et al.
patent: 4736367 (1988-04-01), Wroblewski et al.
patent: 4736763 (1988-04-01), Britton et al.
patent: 4758308 (1988-07-01), Carr
patent: 4777585 (1988-10-01), Kokawa et al.
patent: 4807151 (1989-02-01), Citron
patent: 4818994 (1989-04-01), Orth et al.
patent: 4831564 (1989-05-01), Suga
patent: 4841286 (1989-06-01), Kummer
patent: 4853693 (1989-08-01), Eaton-Williams
patent: 4873655 (1989-10-01), Kondraske
patent: 4907167 (1990-03-01), Skeirik
patent: 4924418 (1990-05-01), Backman et al.
patent: 4926364 (1990-05-01), Brotherton
patent: 4934196 (1990-06-01), Romano
patent: 4939753 (1990-07-01), Olson
patent: 4964125 (1990-10-01), Kim
patent: 4988990 (1991-01-01), Warrior
patent: 4992965 (1991-02-01), Holter et al.
patent: 5005142 (1991-04-01), Lipchak et al.
patent: 5019760 (1991-05-01), Chu et al.
patent: 5025344 (1991-06-01), Maly et al.
patent: 5043862 (1991-08-01), Takahashi et al.
patent: 5053815 (1991-10-01), Wendell
patent: 5057774 (1991-10-01), Verhelst et al.
patent: 5067099 (1991-11-01), McCown et al.
patent: 5081598 (1992-01-01), Bellows et al.
patent: 5083091 (1992-01-01), Frick et al.
patent: 5089979 (1992-02-01), McEachern et al.
patent: 5089984 (1992-02-01), Struger et al.
patent: 5098197 (1992-03-01), Shepard et al.
patent: 5099436 (1992-03-01), McCown et al.
patent: 5103409 (1992-04-01), Shimizu et al.
patent: 5111531 (1992-05-01), Grayson et al.
patent: 5121467 (1992-06-01), Skeirik
patent: 5122794 (1992-06-01), Warrior
patent: 5122976 (1992-06-01), Bellows et al.
patent: 5130936 (1992-07-01), Sheppard et al.
patent: 5134574 (1992-07-01), Beaverstock et al.
patent: 5137370 (1992-08-01), McCullock et al.
patent: 5142612 (1992-08-01), Skeirik
patent: 5143452 (1992-09-01), Maxedon et al.
patent: 5148378 (1992-09-01), Shibayama et al.
patent: 5150289 (1992-09-01), Badavas
patent: 5167009 (1992-11-01), Skeirik
patent: 5175678 (1992-12-01), Frerichs et al.
patent: 5193143 (1993-03-01), Kaemmerer et al.
patent: 5197114 (1993-03-01), Skeirik
patent: 5197328 (1993-03-01), Fitzgerald
patent: 5212765 (1993-05-01), Skeirik
patent: 5214582 (1993-05-01), Gray
patent: 5216226 (1993-06-01), Miyoshi
patent: 5224203 (1993-06-01), Skeirik
patent: 5228780 (1993-07-01), Shepard et al.
patent: 5235527 (1993-08-01), Ogawa et al.
patent: 5265031 (1993-11-01), Malczewski
patent: 5265222 (1993-11-01), Nishiya et al.
patent: 5269311 (1993-12-01), Kirchner et al.
patent: 5274572 (1993-12-01), O'Neill et al.
patent: 5282131 (1994-01-01), Rudd et al.
patent: 5282261 (1994-01-01), Skeirik
patent: 5293585 (1994-03-01), Morita
patent: 5303181 (1994-04-01), Stockton
patent: 5305230 (1994-04-01), Matsumoto et al.
patent: 5311421 (1994-05-01), Nomura et al.
patent: 5317520 (1994-05-01), Castle
patent: 5327357 (1994-07-01), Feinstein et al.
patent: 5333240 (1994-07-01), Matsumoto et al.
patent: 5340271 (1994-08-01), Freeman et al.
patent: 5347843 (1994-09-01), Orr et al.
patent: 5349541 (1994-09-01), Alexandro, Jr. et al.
patent: 5357449 (1994-10-01), Oh
patent: 5361628 (1994-11-01), Marko et al.
patent: 5365423 (1994-11-01), Chand
patent: 5365787 (1994-11-01), Hernandez et al.
patent: 5367612 (1994-11-01), Bozich et al.
patent: 5384699 (1995-01-01), Levy et al.
patent: 5386373 (1995-01-01), Keeler et al.
patent: 5388465 (1995-02-01), Okaniwa et al.
patent: 5392293 (1995-02-01), Hsue
patent: 5394341 (1995-02-01), Kepner
patent: 5394543 (1995-02-01), Hill et al.
patent: 5404064 (1995-04-01), Mermelstein et al.
patent: 5408406 (1995-04-01), Mathur et al.
patent: 5408586 (1995-04-01), Skeirik
patent: 5410495 (1995-04-01), Ramamurthi
patent: 5414645 (1995-05-01), Hirano
patent: 5419197 (1995-05-01), Ogi et al.
patent: 5430642 (1995-07-01), Nakajima et al.
patent: 5434774 (1995-07-01), Seberger
patent: 5436705 (1995-07-01), Raj
patent: 5440478 (1995-08-01), Fisher et al.
patent: 5442639 (1995-08-01), Crowder et al.
patent: 5467355 (1995-11-01), Umeda et al.
patent: 5469070 (1995-11-01), Koluvek
patent: 5469156 (1995-11-01), Kogura
patent: 5469735 (1995-11-01), Watanabe
patent: 5469749 (1995-11-01), Shimada et al.
patent: 5481199 (1996-01-01), Anderson et al.
patent: 5481200 (1996-01-01), Voegele et al.
patent: 5483387 (1996-01-01), Bauhahn et al.
patent: 5485753 (1996-01-01), Burns et al.
patent: 5486996 (1996-01-01), Samad et al.
patent: 5488697 (1996-01-01), Kaemmerer et al.
patent: 5489831 (1996-02-01), Harris
patent: 5495769 (1996-03-01), Broden et al.
patent: 5510779 (1996-04-01), Maltby et al.
patent: 5511004 (1996-04-01), Dubost et al.
patent: 5526293 (1996-06-01), Mozumder et al.
patent: 5539638 (1996-07-01), Keeler et al.
patent: 5548528 (1996-08-01), Keeler et al.
patent: 5555190 (1996-09-01), Derby et al.
patent: 5560246 (1996-10-01), Bottinger et al.
patent: 5561599 (1996-10-01), Lu
patent: 5570034 (1996-10-01), Needham et al.
patent: 5570300 (1996-10-01), Henry et al.
patent: 5572420 (1996-11-01), Lu
patent: 5573032 (1996-11-01), Lenz et al.
patent: 5578763 (1996-11-01), Spencer et al.
patent: 5591922 (1997-01-01), Segeral et al.
patent: 5598521 (1997-01-01), Kilgore et al.
patent: 5600148 (1997-02-01), Cole et al.
patent: 5608650 (1997-03-01), McClendon et al.
patent: 5623605 (1997-04-01), Keshav et al.
patent: 5629870 (1997-05-01), Farag et al.
patent: 5633809 (1997-05-01), Wissenbach et al.
patent: 5637802 (1997-06-01), Frick et al.
patent: 5640491 (1997-06-01), Bhat et al.
patent: 5644240 (1997-07-01), Brugger
patent: 5654869 (1997-08-01), Ohi et al.
patent: 5661668 (1997-08-01), Yemini et al.
patent: 5665899 (1997-09-01), Willcox
patent: 5669713 (1997-09-01), Schwartz et al.
patent: 5671335 (1997-09-01), Davis et al.
patent: 5672247 (1997-09-01), Panga
Eryurek Evren
Kavaklioglu Kadir
Lamothe Ross C.
Miller John P.
Wiklund David E.
Christenson Christopher R.
Nghiem Michael P
Rosemount Inc.
Westman Champlin & Kelly P.A.
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