Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Gunnar Wang"'
Publikováno v:
Journal of Ship Research. 45:205-215
A method for measurement of global loads on a vessel, using strain measurements from a network of strain sensors and extensive Žnite-element analyses (FEA) with idealistic load cases, is presented. The sensors are attached at carefully selected loca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7acc74e529c005ba6e64b5dcf0b68f8
https://doi.org/10.5957/jsr.2001.45.3.205
https://doi.org/10.5957/jsr.2001.45.3.205
Autor:
Gregg Johnson, Geir Bjarte Havsgard, Alf Egil Jensen, Karianne Pran, G. Sagvolden, Gunnar Wang, Sandeep T. Vohra
Publikováno v:
Smart Materials and Structures. 10:472-478
We discuss the need for ship hull monitoring and the roles such a system may fill during the different stages of a ship's lifetime. We have found that fibre optic sensors are well suited for this application and present the fibre Bragg grating techno
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71b78996558df2a11016f68e28dbc0be
https://doi.org/10.1088/0964-1726/10/3/308
https://doi.org/10.1088/0964-1726/10/3/308
Autor:
Sandeep T. Vohra, Alf Egil Jensen, Gunnar Wang, Anthony Dandridge, Karianne Pran, Michael A. Davis, Geir Bjarte Havsgard
Publikováno v:
Composites Part B: Engineering. 31:187-198
Drop test experiments have been performed with a FRP sandwich panel instrumented with a network of 16 fibre optic (FO) Bragg strain sensors, together with conventional electrical strain gauges for control and verification. The drop tests simulate sla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28e1f547e7cf5dcf0b028ae46497e1f4
https://doi.org/10.1016/s1359-8368(00)00004-4
https://doi.org/10.1016/s1359-8368(00)00004-4
Autor:
A. Andersen, Frank Bucholtz, T. Lund, H. Valo, E.J. Eidem, Allen Davis, S.S. Patrick, R. Gjessing, J.A. McVicker, Clay K. Kirkendall, K.P. Koo, Carl A. Villarruel, Gunnar Wang, D.M. Dagenais, T. Knudsen
Publikováno v:
Journal of Lightwave Technology. 13:1385-1395
We have designed, fabricated, and operated an undersea array of eight fiber-optic vector magnetometers. Each magnetometer consists of three magnetostrictive transducers aligned on orthogonal axes and incorporated in a single Michelson interferometer.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::592c80eec51a02d876c3933f15310c67
https://doi.org/10.1109/50.400703
https://doi.org/10.1109/50.400703
Publikováno v:
Optics Communications. 104:271-276
It is shown that the frequency components of a non-sinusoidal periodic vibration can be detected using time average TV-holography and phase modulation. The theory for such detection is discussed. Experimental results demonstrating the validity of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ab5785dfd73a8adaee2ebf6e8284db0
https://doi.org/10.1016/0030-4018(94)90554-1
https://doi.org/10.1016/0030-4018(94)90554-1
Autor:
Gunnar Wang, S. O. Kanstad
Publikováno v:
Applied optics. 18(2)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7b2a0658af7c0a148efd080fb1dcbca
https://pubmed.ncbi.nlm.nih.gov/20208677
https://pubmed.ncbi.nlm.nih.gov/20208677
Autor:
S. O. Kanstad, Gunnar Wang
Publikováno v:
Applied optics. 17(1)
A grating may be employed to fold a laser resonator, thereby enabling the simultaneous extraction of several frequencies from the laser. This limits the range of useful grating constants as compared to the Littrow case. The astigmatism introduced by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c4aa8b4034a7e7ad684acdbf792d01d
https://pubmed.ncbi.nlm.nih.gov/20174358
https://pubmed.ncbi.nlm.nih.gov/20174358
Autor:
H. Valo, J.A. McVicker, K.P. Koo, Clay K. Kirkendall, T. Lund, Carl A. Villarruel, D.M. Dagenais, S.S. Patrick, Frank Bucholtz, Allen Davis, R. Gjessing, Gunnar Wang, A. Andersen, T. Knudsen, E.J. Eidem
Publikováno v:
IEEE Transactions on Magnetics. 31:3194-3196
We describe an undersea array of eight fiber-optic, three-axis magnetic sensors. The interferometric sensors employ magnetostrictive metallic glass strips as the transducer elements. We discuss the operating principles and the performance of the syst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8c2ea05f0fbe6aec1d478c323e2dc65
https://doi.org/10.1109/20.490325
https://doi.org/10.1109/20.490325
Publikováno v:
2002 15th Optical Fiber Sensors Conference Technical Digest. OFS 2002(Cat. No.02EX533).
We have carried out a long-term test of the tension in bolted glass fibre reinforced composite plates that shows that significant tension is left in such joints after one year, and that re-tightening is an option. The tests have provided valuable inf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb2cade3e6cb2e527904a8c28d597abc
https://doi.org/10.1109/ofs.2002.1000684
https://doi.org/10.1109/ofs.2002.1000684
Autor:
C. Erbeia, L. Vines, G. B. Havsgard, A. Hordvik, K. Nakken, A. Berg, Gunnar Wang, C. Lachaize, O. Farsund
Publikováno v:
2002 15th Optical Fiber Sensors Conference Technical Digest. OFS 2002(Cat. No.02EX533).
A 32-element fiber optic hydrophone system has been developed, constructed and tested in the EUCLID project 'All fiber optic hydrophone line array'. Measurements during the final sea trials showed that performance meets or exceeds the specifications.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::947414593e74c3ee45a91c0f318e2ba3
https://doi.org/10.1109/ofs.2002.1000570
https://doi.org/10.1109/ofs.2002.1000570