Measuring and testing – Dynamometers – Responsive to torque
Reexamination Certificate
2008-06-25
2011-10-25
Caputo, Lisa (Department: 2855)
Measuring and testing
Dynamometers
Responsive to torque
C073S650000, C073S800000
Reexamination Certificate
active
08042412
ABSTRACT:
A fiberoptic multi-parameter sensing system for monitoring turbomachinery system shaft static and dynamic torques, vibration modes and associated operation status includes a multi-furcated fiber bundle based optical splitter configured to transmit light to a surface of at least one turbomachinery system shaft through a plurality of optical fiber bundles disposed at a plurality of locations in proximity to the surface of the at least one shaft, in which the plurality of locations together are arranged in a substantially axial direction between the ends of the at least one shaft. The system further includes an array of high-temperature bifurcated fiber bundle based reflectance probes to receive reflectance signals from the shaft surface and send to an array of photosensitive detectors, configured to detect dynamic light reflected from the at least one turbomachinery system shaft surface in response to the transmitted light during rotation of at least one turbomachinery system shaft and generate dynamic reflected light signals there from. A sensing mechanism is configured to determine a torque or vibration on at least one turbomachinery system shaft in response to the dynamic reflected light signal signatures based on time-domain and frequency-domain signal processes.
REFERENCES:
patent: 4183242 (1980-01-01), Brown
patent: 4347748 (1982-09-01), Pierson
patent: 4687344 (1987-08-01), Lillquist
patent: 5001937 (1991-03-01), Bechtel et al.
patent: 5023845 (1991-06-01), Crane et al.
patent: 5214278 (1993-05-01), Banda
patent: 5253531 (1993-10-01), Walker et al.
patent: 5298964 (1994-03-01), Nelson et al.
patent: 5301559 (1994-04-01), Tsuji et al.
patent: 5438882 (1995-08-01), Karim-Panahi et al.
patent: 5456123 (1995-10-01), Parkinson
patent: 5474813 (1995-12-01), Walker et al.
patent: 5723794 (1998-03-01), Discenzo
patent: 5734108 (1998-03-01), Walker et al.
patent: 5747699 (1998-05-01), Ebi
patent: 6031944 (2000-02-01), Youngner
patent: 6318187 (2001-11-01), Griepentrog et al.
patent: 6460422 (2002-10-01), Kuroda et al.
patent: 6513390 (2003-02-01), De La Puente et al.
patent: 6807870 (2004-10-01), Kondo et al.
patent: 6865959 (2005-03-01), Kilmartin et al.
patent: 6948381 (2005-09-01), Discenzo
patent: 6981423 (2006-01-01), Discenzo
patent: 7104133 (2006-09-01), Kuroda et al.
patent: 7265336 (2007-09-01), Hataguchi et al.
patent: 7322250 (2008-01-01), Discenzo
patent: 7444882 (2008-11-01), Woo
patent: 7458277 (2008-12-01), Discenzo
patent: 7559258 (2009-07-01), Matzoll et al.
patent: 2002/0033052 (2002-03-01), Kondo et al.
patent: 2004/0255699 (2004-12-01), Matzoll et al.
patent: 2007/0034004 (2007-02-01), Cripe
patent: 2007/0056387 (2007-03-01), Obikawa
patent: 2007/0068280 (2007-03-01), Cripe
patent: 2008/0041141 (2008-02-01), Discenzo
patent: 2008/0236294 (2008-10-01), Woo
“Diagnosis of Thermal Efficiency of Advanced Combined Cycle Power Plants Using Optical Torque Sensor”, Umezawa, Shuichi et al., Proceedings of PWR2005, ASME Power, Apr. 5-7, 2005, Chicago, Illinois, USA.
“Low-Cost Optical Neural-Net Torque Transducer”, Fred M. Discenzo et al., 1999, The Institution of Electrical Engineers.
“Diagnosis Of Thermal Efficiency Of Nuclear Power Plants Using Optical Torque Sensors”, Umezawa, Shuichi et al., Proceeding of ICONE14, International Conference On Nuclear Engineering, Jul. 17-20, Miami, Florida, USA.
Chan David So Keung
Gawrelski Richard Joseph
Li Yun
McCarthy Kevin Thomas
Pietrzykowski Matthew Damian
Agosti Ann M.
Caputo Lisa
Dunlap Jonathan
General Electric Company
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