Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Roger G. Duncan"'
Autor:
Roger G. Duncan, Dawn K. Gifford, Stephen T. Kreger, Matthew S. Wolfe, Brian J. Soller, Mark E. Froggatt
Publikováno v:
SAE Technical Paper Series.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::feb374b12cbae57b4406c39d4a8b8f01
https://doi.org/10.4271/2007-01-3863
https://doi.org/10.4271/2007-01-3863
Autor:
Mark E. Froggatt, Ryan J. Seeley, Stephen T. Kreger, Roger G. Duncan, Dawn K. Gifford, Matthew S. Wolfe, Alexander K. Sang
Publikováno v:
Sensor Systems and Networks: Phenomena, Technology, and Applications for NDE and Health Monitoring 2007.
We describe the results of a study of the performance characteristics of a monolithic fiber-optic shape sensor array. Distributed strain measurements in a multi-core optical fiber interrogated with the optical frequency domain reflectometry technique
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09a16787fb5dcfa242160ba3f2f7d792
https://doi.org/10.1117/12.720914
https://doi.org/10.1117/12.720914
Autor:
Alex K. Sang, Brian J. Soller, Roger G. Duncan, Dawn K. Gifford, Stephen T. Kreger, Matthew S. Wolfe, Mark E. Froggatt
Publikováno v:
Sensor Systems and Networks: Phenomena, Technology, and Applications for NDE and Health Monitoring 2007.
We describe the use of swept-wavelength interferometry for distributed fiber-optic sensing in single- and multimode optical fiber using intrinsic Rayleigh backscatter. The interrogation technique is based on measuring the spectral shift of the intrin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f4d210604ca6de96dde95da967c10a2
https://doi.org/10.1117/12.720913
https://doi.org/10.1117/12.720913
Autor:
Matthew T. Raum, Roger G. Duncan
Publikováno v:
SPIE Proceedings.
We report the results of a study of the performance characteristics of a distributed fiber-optic shape and position sensor. Strain measurements from distributed fiber Bragg gratings in a multi-core optical fiber multiplexed via the frequency domain r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8517fec5cf3b186e0ed3e739de22af9c
https://doi.org/10.1117/12.658535
https://doi.org/10.1117/12.658535
Autor:
Matthew Thomas Raum, Roger G. Duncan, Robert S. Fielder, James H. Mabe, Alex K. Sang, Sandra M. Klute, George W. Butler, Ryan J. Seeley
Publikováno v:
44th AIAA Aerospace Sciences Meeting and Exhibit.
Boeing has recently flight tested a Variable Geometry Chevron (VGC) system which used shape memory alloy (NiTinol) actuators to drive changes in shape. At take off, the VGCs immersed into the fan stream to reduce jet noise; at cruise they were active
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f550d5d3825e318847a4c43914bbc5b8
https://doi.org/10.2514/6.2006-624
https://doi.org/10.2514/6.2006-624
Publikováno v:
46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44ddf1e1b5ae769fd1a24ce20a046588
https://doi.org/10.2514/6.2005-1807
https://doi.org/10.2514/6.2005-1807
Publikováno v:
SPIE Proceedings.
We report the use of a fiber-optic distributed sensing system to monitor temperature at a multitude of discrete points on an industrial motor undergoing qualification after a rewinding. This technique involves using optical frequency domain reflectom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d732d59dd1a856c562f0a2b014000500
https://doi.org/10.1117/12.540130
https://doi.org/10.1117/12.540130
Autor:
Brooks A. Childers, Roger G. Duncan, Dawn K. Gifford, Andrew W. Hickson, Don Petit, Anthony C. Jackson
Publikováno v:
42nd AIAA Aerospace Sciences Meeting and Exhibit.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c705aee223de7adab04ed52ab16e5a5
https://doi.org/10.2514/6.2004-544
https://doi.org/10.2514/6.2004-544
Autor:
William Schwienberg, James Mazza, Anthony C. Jackson, Brooks A. Childers, Roger G. Duncan, Dawn K. Gifford, Surendra Shaw
Publikováno v:
SPIE Proceedings.
We report the use of a fiber-optic distributed sensing system to monitor crack growth on aircraft panels. The system utilizes optical frequency domain reflectometry to demodulate the reflected signals from up to thousands of weakly reflecting grating
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c943ca0cfad3ddb397c915277791ad02
https://doi.org/10.1117/12.508072
https://doi.org/10.1117/12.508072
Autor:
Timothy L. Brown, Roger G. Duncan, Don E. Pettit, Dawn K. Gifford, Brooks A. Childers, Andrew W. Hickson
Publikováno v:
SPIE Proceedings.
We report the use of a fiber-optic distributed sensing system to monitor structural fatigue on an aircraft undergoing a full scale fatigue test. This technique involves using optical frequency domain reflectometry to demodulate the reflected signals
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa0bdd662157d58cfaf9f3273942b042
https://doi.org/10.1117/12.512546
https://doi.org/10.1117/12.512546