Comparison between metallic and optical interferometric sensors for electromagnetic field measurement

Many applications around the world use electromagnetic fields (EMF) to accomplish their purposes. Nowadays, to measure these EMF, the use of optical sensors has been rising higher and higher. In this paper, we present a general description of the electromagnetic field optical sensors, more specifica...

Full description

Autores:
Márquez López, Jonathan Daniel
Tipo de recurso:
Trabajo de grado de pregrado
Fecha de publicación:
2016
Institución:
Universidad Santo Tomás
Repositorio:
Repositorio Institucional USTA
Idioma:
spa
OAI Identifier:
oai:repository.usta.edu.co:11634/2782
Acceso en línea:
https://hdl.handle.net/11634/2782
Palabra clave:
Ingeniería de Telecomunicaciones
Tecnología
Metodología
Sensores
Campos electromagnéticos
Interferometría
Ópticas
Rights
openAccess
License
Atribución-NoComercial-SinDerivadas 2.5 Colombia
id SANTOTOMAS_21370f49c736dd8c5170b73def822560
oai_identifier_str oai:repository.usta.edu.co:11634/2782
network_acronym_str SANTOTOMAS
network_name_str Repositorio Institucional USTA
repository_id_str
dc.title.spa.fl_str_mv Comparison between metallic and optical interferometric sensors for electromagnetic field measurement
title Comparison between metallic and optical interferometric sensors for electromagnetic field measurement
spellingShingle Comparison between metallic and optical interferometric sensors for electromagnetic field measurement
Ingeniería de Telecomunicaciones
Tecnología
Metodología
Sensores
Campos electromagnéticos
Interferometría
Ópticas
title_short Comparison between metallic and optical interferometric sensors for electromagnetic field measurement
title_full Comparison between metallic and optical interferometric sensors for electromagnetic field measurement
title_fullStr Comparison between metallic and optical interferometric sensors for electromagnetic field measurement
title_full_unstemmed Comparison between metallic and optical interferometric sensors for electromagnetic field measurement
title_sort Comparison between metallic and optical interferometric sensors for electromagnetic field measurement
dc.creator.fl_str_mv Márquez López, Jonathan Daniel
dc.contributor.author.none.fl_str_mv Márquez López, Jonathan Daniel
dc.contributor.corporatename.none.fl_str_mv Universidad Santo Tomás
dc.subject.lemb.none.fl_str_mv Ingeniería de Telecomunicaciones
Tecnología
Metodología
topic Ingeniería de Telecomunicaciones
Tecnología
Metodología
Sensores
Campos electromagnéticos
Interferometría
Ópticas
dc.subject.proposal.spa.fl_str_mv Sensores
Campos electromagnéticos
Interferometría
Ópticas
description Many applications around the world use electromagnetic fields (EMF) to accomplish their purposes. Nowadays, to measure these EMF, the use of optical sensors has been rising higher and higher. In this paper, we present a general description of the electromagnetic field optical sensors, more specifically interferometric sensors, with some applications. Also we present a comparison between classical sensors with metallic probes and optical sensors with electro-optical (EO) probes, according to technical parameters showing the advantages of optical sensors beside an economic trend that shows the increase of implementations of this kind of sensors.
publishDate 2016
dc.date.issued.none.fl_str_mv 2016
dc.date.accessioned.none.fl_str_mv 2017-06-16T22:04:59Z
dc.date.accessioned.spa.fl_str_mv 2017-06-24T16:27:10Z
dc.date.available.none.fl_str_mv 2017-06-16T22:04:59Z
dc.date.available.spa.fl_str_mv 2017-06-24T16:27:10Z
dc.date.none.fl_str_mv 2016
dc.type.none.fl_str_mv bachelor thesis
dc.type.local.spa.fl_str_mv Tesis de pregrado
dc.type.version.none.fl_str_mv info:eu-repo/semantics/acceptedVersion
dc.type.coar.none.fl_str_mv http://purl.org/coar/resource_type/c_7a1f
dc.type.drive.none.fl_str_mv info:eu-repo/semantics/bachelorThesis
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status_str acceptedVersion
dc.identifier.citation.none.fl_str_mv Márquez López, J. D. (2016). Comparison between metallic and optical interferometric sensors for electromagnetic field measurement. [Trabajo de Grado, Universidad Santo Tomás]. Repositorio Institucional.
dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/11634/2782
dc.identifier.reponame.spa.fl_str_mv reponame:Repositorio Institucional Universidad Santo Tomás
dc.identifier.instname.spa.fl_str_mv instname:Universidad Santo Tomás
dc.identifier.repourl.spa.fl_str_mv repourl:https://repository.usta.edu.co
identifier_str_mv Márquez López, J. D. (2016). Comparison between metallic and optical interferometric sensors for electromagnetic field measurement. [Trabajo de Grado, Universidad Santo Tomás]. Repositorio Institucional.
reponame:Repositorio Institucional Universidad Santo Tomás
instname:Universidad Santo Tomás
repourl:https://repository.usta.edu.co
url https://hdl.handle.net/11634/2782
dc.language.iso.spa.fl_str_mv spa
language spa
dc.relation.references.none.fl_str_mv C.A.Balanis, Antenna Theory: Analysis and Design, 2on Edition John Wiley, 1997
Eric Udd, William B. Spillman, Jr. Wiley, ”Fiber Optic Sensors: An Introduction for Engineers and Scientists”, 7 oct. 2011 - 512 pages.
Sensors (Basel). 2012, 12(3):2467-86. doi: 10.3390/s120302467. Epub 2012 Feb 23. Interferometric fiber optic sensors. Lee BH1, Kim YH, Park KS, Eom JB, Kim MJ, Rho BS, Choi HY
Hiroyoshi Togo, Shoji Mochizuki, and Naoya Kukutsu, ”Optical Fiber Electric Field Sensor for Antenna Measurement”, NTT Technical Review, Vol. 7, No. 3, 2009
Wild, G.; Hinckley, S., ”Acousto-Ultrasonic Optical Fiber Sensors: Overview and State-of-the-Art”, in Sensors Journal, IEEE , vol.8, no.7, pp.1184-1193, July 2008
Belhadj, N.; LaRochelle, S.; Dossou, K., ”Analysis of birefringence and eigen-axes orientation resulting from the interplay between initial and form birefringence in UV-illuminated fiber,” in Lasers and Electro-Optics Society, 2006.
Duvillaret L. et al., ”Electro-optic sensors for electric field measurements. II. Choice of the crystals and complete optimization of Their orientation”, J. Opt. Soc. Am. B 19, p 2704-2715 (2002)
K. Bohnert, P. Gabus, J. Kostovic, H. Brndle, ”Optical fiber sensors for the electric power industry”, Optics and Lasers in Engineering, 2005.
”Current Developments in Optical Fiber Technology”, book edited by Sulaiman Wadi Harun and Hamzah Arof, ISBN 978-953-51-1148-1, 2013.
Huang, S.J.; Erickson, Dennis C., ”The Potential Use of Optical Sensors for the Measurement of Electric Field Distribution,” in Power Engineering Review, 1989.
Kuehn, S.; Bomholt, F.; Kuster, N., ”Miniature electro-optical probe for magnitude, phase and time-domain measurements of radio-frequency magnetic fields,” in Electromagnetic Compatibility (APEMC), 2010.
Murooka, Y. Nakano, T. Takahashi, Y. Kawakami, T., ”Modified Pockels sensor for electric-field measurements,” in Science, Measurement and Technology, 1994
Yang Yongjun, Chen Fushen, ”Optical Characteristics of the Optical E-Field Sensor Using LiNbO3 M-Z Waveguides in the Static Field,” in Communications, Circuits and Systems Proceedings, 2006
Loader B, Gregory, A.; Bownds, D.; Seifert, F., ”Evaluation of an optical electric field sensor for measurement of specific absorption rate (SAR) during magnetic resonance imaging,” in Electromagnetic Compatibility (EMC EUROPE), 2012.
Duvillaret. Lionel, (Dec. 2015), ”Les bons critres de mesure en lectromagntisme”. [Online]. Available: http://www.kapteos.com
E. Grudzinski, V. Nichoga, I. Prudyus, ”Antennas in Metrology of Electromagnetic Fields near Radiation Sources”, 2007
K.M. Abramski, H. trzaska, ”FM EMF Sensors”, Technical University of Wroclaw, 2002
Market Research Report - 245023 Fiber Optic Sensors Market Forecast (February 2015)
Mohamad Yasin, Sulaiman Wadi Harun and Hamzah Arof, ”Optical Sensors - New Developments and Practical Applications”, book edited, 2014
Anguera Jaume, Antonio Prez, ”Teora de antenas”, Universitat Ramon Llull, 2008.
Pramod K. Rastogi, ”Optical Measurement Techniques and Applications”, Artech House, 1997.
Jackson D.A, ”Elimination of Drift in a Single-Mode Optical Fiber Interferometer Using a Piezoelectrically Streteched Colied Fiber ”, appl. Optics, Vol 19, 1980
Cole, J. H., ”Synthetic Heterodyne Interferometric Demodulation”, J. Quand. Electron, Vol 18, 1982.
Kersey A.D., ”Phase Compensation Scheme Suitable for Use in Single Mode Fiber Interferometer”, Electron lett, Vol 18, 1982.
Dandridge, A., ”Homodyne Demodulation Scheme for Fiber-Optic Sensors Using Phase Generated Carrier”, J. Quand. Electron, Vol 18, 1982.
Lee, C.E., H.F. Taylor, ”Interferometric Optical Fiber Sensors Using Internal Mirrors”, Electron lett, Vol 24, 1988
Lee, C.E., ”In-Line Fiber Fabry-Perot Interferometer with High Reflectance Internal Mirrors”, 8th Int. Conf. Optical Fiber Sensors, Monterey, CA, 1992
Murphy, K.A., ”Extrinsic Fabry-Perot Optical Fiber Sensor”, 8th Int. Conf. Optical Fiber Sensors, Monterey, CA, 1992.
Culshaw B., ”Fiber-Optic Sensing: A Historical Perspective”. J. Lightwave Technol, 2008
J. Kausche, G. Mielke, ”EMF Measurement on LTE signals using the RS-TS EMF portable system”, Rhode-schwarz systems
Udd E, Spillman Jr WB, ”Fiber Optic Sensors: An Introduction for Engineers and Scientists”, Vol 2, New York, USA, 2011.
U. Sharma, X. Wei, ”Fiber Optic Interferomtric Devices”, Carl Zeiss Meditec, Inc., 2013.
Sirkis, J. et al., ”In-Line Fiber Etalon (ILFE) Fiber Optic Strain Sensor”, J. Lightwave Tech., Vol 13, 1995.
Koo, K.P., G.H. Sigel ”A Fiber Optic Magnetic Gradiometer”, J. Lightwave Tech., Vol 1, 1983.
Vorha S.T., ”DC and Low Frequency Fiber Optic Electric Field Sensor ”, Optics lett, Vol 16, 1991.
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spelling Márquez López, Jonathan DanielUniversidad Santo Tomás20162017-06-16T22:04:59Z2017-06-24T16:27:10Z2017-06-16T22:04:59Z2017-06-24T16:27:10Z2016Márquez López, J. D. (2016). Comparison between metallic and optical interferometric sensors for electromagnetic field measurement. [Trabajo de Grado, Universidad Santo Tomás]. Repositorio Institucional.https://hdl.handle.net/11634/2782reponame:Repositorio Institucional Universidad Santo Tomásinstname:Universidad Santo Tomásrepourl:https://repository.usta.edu.coMany applications around the world use electromagnetic fields (EMF) to accomplish their purposes. Nowadays, to measure these EMF, the use of optical sensors has been rising higher and higher. In this paper, we present a general description of the electromagnetic field optical sensors, more specifically interferometric sensors, with some applications. Also we present a comparison between classical sensors with metallic probes and optical sensors with electro-optical (EO) probes, according to technical parameters showing the advantages of optical sensors beside an economic trend that shows the increase of implementations of this kind of sensors.Ingeniero de TelecomunicacionesPregradoapplication/pdfspaUniversidad Santo TomásPregrado Ingeniería de TelecomunicacionesFacultad de Ingeniería de TelecomunicacionesAtribución-NoComercial-SinDerivadas 2.5 Colombiahttp://creativecommons.org/licenses/by-nc-nd/2.5/co/Abierto (Texto Completo)info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Comparison between metallic and optical interferometric sensors for electromagnetic field measurementbachelor thesisTesis de pregradoinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_7a1finfo:eu-repo/semantics/bachelorThesisIngeniería de TelecomunicacionesTecnologíaMetodologíaSensoresCampos electromagnéticosInterferometríaÓpticasCRAI-USTA BogotáC.A.Balanis, Antenna Theory: Analysis and Design, 2on Edition John Wiley, 1997Eric Udd, William B. Spillman, Jr. Wiley, ”Fiber Optic Sensors: An Introduction for Engineers and Scientists”, 7 oct. 2011 - 512 pages.Sensors (Basel). 2012, 12(3):2467-86. doi: 10.3390/s120302467. Epub 2012 Feb 23. Interferometric fiber optic sensors. Lee BH1, Kim YH, Park KS, Eom JB, Kim MJ, Rho BS, Choi HYHiroyoshi Togo, Shoji Mochizuki, and Naoya Kukutsu, ”Optical Fiber Electric Field Sensor for Antenna Measurement”, NTT Technical Review, Vol. 7, No. 3, 2009Wild, G.; Hinckley, S., ”Acousto-Ultrasonic Optical Fiber Sensors: Overview and State-of-the-Art”, in Sensors Journal, IEEE , vol.8, no.7, pp.1184-1193, July 2008Belhadj, N.; LaRochelle, S.; Dossou, K., ”Analysis of birefringence and eigen-axes orientation resulting from the interplay between initial and form birefringence in UV-illuminated fiber,” in Lasers and Electro-Optics Society, 2006.Duvillaret L. et al., ”Electro-optic sensors for electric field measurements. II. Choice of the crystals and complete optimization of Their orientation”, J. Opt. Soc. Am. B 19, p 2704-2715 (2002)K. Bohnert, P. Gabus, J. Kostovic, H. Brndle, ”Optical fiber sensors for the electric power industry”, Optics and Lasers in Engineering, 2005.”Current Developments in Optical Fiber Technology”, book edited by Sulaiman Wadi Harun and Hamzah Arof, ISBN 978-953-51-1148-1, 2013.Huang, S.J.; Erickson, Dennis C., ”The Potential Use of Optical Sensors for the Measurement of Electric Field Distribution,” in Power Engineering Review, 1989.Kuehn, S.; Bomholt, F.; Kuster, N., ”Miniature electro-optical probe for magnitude, phase and time-domain measurements of radio-frequency magnetic fields,” in Electromagnetic Compatibility (APEMC), 2010.Murooka, Y. Nakano, T. Takahashi, Y. Kawakami, T., ”Modified Pockels sensor for electric-field measurements,” in Science, Measurement and Technology, 1994Yang Yongjun, Chen Fushen, ”Optical Characteristics of the Optical E-Field Sensor Using LiNbO3 M-Z Waveguides in the Static Field,” in Communications, Circuits and Systems Proceedings, 2006Loader B, Gregory, A.; Bownds, D.; Seifert, F., ”Evaluation of an optical electric field sensor for measurement of specific absorption rate (SAR) during magnetic resonance imaging,” in Electromagnetic Compatibility (EMC EUROPE), 2012.Duvillaret. Lionel, (Dec. 2015), ”Les bons critres de mesure en lectromagntisme”. [Online]. Available: http://www.kapteos.comE. Grudzinski, V. Nichoga, I. Prudyus, ”Antennas in Metrology of Electromagnetic Fields near Radiation Sources”, 2007K.M. Abramski, H. trzaska, ”FM EMF Sensors”, Technical University of Wroclaw, 2002Market Research Report - 245023 Fiber Optic Sensors Market Forecast (February 2015)Mohamad Yasin, Sulaiman Wadi Harun and Hamzah Arof, ”Optical Sensors - New Developments and Practical Applications”, book edited, 2014Anguera Jaume, Antonio Prez, ”Teora de antenas”, Universitat Ramon Llull, 2008.Pramod K. Rastogi, ”Optical Measurement Techniques and Applications”, Artech House, 1997.Jackson D.A, ”Elimination of Drift in a Single-Mode Optical Fiber Interferometer Using a Piezoelectrically Streteched Colied Fiber ”, appl. Optics, Vol 19, 1980Cole, J. H., ”Synthetic Heterodyne Interferometric Demodulation”, J. Quand. Electron, Vol 18, 1982.Kersey A.D., ”Phase Compensation Scheme Suitable for Use in Single Mode Fiber Interferometer”, Electron lett, Vol 18, 1982.Dandridge, A., ”Homodyne Demodulation Scheme for Fiber-Optic Sensors Using Phase Generated Carrier”, J. Quand. Electron, Vol 18, 1982.Lee, C.E., H.F. Taylor, ”Interferometric Optical Fiber Sensors Using Internal Mirrors”, Electron lett, Vol 24, 1988Lee, C.E., ”In-Line Fiber Fabry-Perot Interferometer with High Reflectance Internal Mirrors”, 8th Int. Conf. Optical Fiber Sensors, Monterey, CA, 1992Murphy, K.A., ”Extrinsic Fabry-Perot Optical Fiber Sensor”, 8th Int. Conf. Optical Fiber Sensors, Monterey, CA, 1992.Culshaw B., ”Fiber-Optic Sensing: A Historical Perspective”. J. Lightwave Technol, 2008J. Kausche, G. Mielke, ”EMF Measurement on LTE signals using the RS-TS EMF portable system”, Rhode-schwarz systemsUdd E, Spillman Jr WB, ”Fiber Optic Sensors: An Introduction for Engineers and Scientists”, Vol 2, New York, USA, 2011.U. Sharma, X. Wei, ”Fiber Optic Interferomtric Devices”, Carl Zeiss Meditec, Inc., 2013.Sirkis, J. et al., ”In-Line Fiber Etalon (ILFE) Fiber Optic Strain Sensor”, J. Lightwave Tech., Vol 13, 1995.Koo, K.P., G.H. Sigel ”A Fiber Optic Magnetic Gradiometer”, J. Lightwave Tech., Vol 1, 1983.Vorha S.T., ”DC and Low Frequency Fiber Optic Electric Field Sensor ”, Optics lett, Vol 16, 1991.THUMBNAILMarquezjonathan2016.pdf.jpgMarquezjonathan2016.pdf.jpgIM Thumbnailimage/jpeg15092https://repository.usta.edu.co/bitstream/11634/2782/3/Marquezjonathan2016.pdf.jpg87b722d40cf44872ead02bfd7c95e3ecMD53open access2016cartadefacultad.pdf.jpg2016cartadefacultad.pdf.jpgIM Thumbnailimage/jpeg7088https://repository.usta.edu.co/bitstream/11634/2782/6/2016cartadefacultad.pdf.jpg2c14c2a9847669c9907ef70a783d7d68MD56open access2016cartadederechosdeautor.pdf.jpg2016cartadederechosdeautor.pdf.jpgIM Thumbnailimage/jpeg6895https://repository.usta.edu.co/bitstream/11634/2782/7/2016cartadederechosdeautor.pdf.jpgf6d7b7351b3b93d91b79a696e980c469MD57open accessORIGINALMarquezjonathan2016.pdfapplication/pdf842375https://repository.usta.edu.co/bitstream/11634/2782/1/Marquezjonathan2016.pdf2f62087ed161daf83d720eeb332e9fa5MD51open access2016cartadefacultad.pdf2016cartadefacultad.pdfapplication/pdf53752https://repository.usta.edu.co/bitstream/11634/2782/4/2016cartadefacultad.pdfd18c34cb7bb753b8ed391f6f84329b1bMD54metadata only access2016cartadederechosdeautor.pdf2016cartadederechosdeautor.pdfapplication/pdf37892https://repository.usta.edu.co/bitstream/11634/2782/5/2016cartadederechosdeautor.pdfc08207c11fe74891513068c8ffb3d82fMD55metadata only accessLICENSElicense.txttext/plain1748https://repository.usta.edu.co/bitstream/11634/2782/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52open access11634/2782oai:repository.usta.edu.co:11634/27822024-06-25 12:51:47.863open accessRepositorio Universidad Santo Tomásrepositorio@usta.edu.coTk9URTogUExBQ0UgWU9VUiBPV04gTElDRU5TRSBIRVJFClRoaXMgc2FtcGxlIGxpY2Vuc2UgaXMgcHJvdmlkZWQgZm9yIGluZm9ybWF0aW9uYWwgcHVycG9zZXMgb25seS4KCk5PTi1FWENMVVNJVkUgRElTVFJJQlVUSU9OIExJQ0VOU0UKCkJ5IHNpZ25pbmcgYW5kIHN1Ym1pdHRpbmcgdGhpcyBsaWNlbnNlLCB5b3UgKHRoZSBhdXRob3Iocykgb3IgY29weXJpZ2h0Cm93bmVyKSBncmFudHMgdG8gRFNwYWNlIFVuaXZlcnNpdHkgKERTVSkgdGhlIG5vbi1leGNsdXNpdmUgcmlnaHQgdG8gcmVwcm9kdWNlLAp0cmFuc2xhdGUgKGFzIGRlZmluZWQgYmVsb3cpLCBhbmQvb3IgZGlzdHJpYnV0ZSB5b3VyIHN1Ym1pc3Npb24gKGluY2x1ZGluZwp0aGUgYWJzdHJhY3QpIHdvcmxkd2lkZSBpbiBwcmludCBhbmQgZWxlY3Ryb25pYyBmb3JtYXQgYW5kIGluIGFueSBtZWRpdW0sCmluY2x1ZGluZyBidXQgbm90IGxpbWl0ZWQgdG8gYXVkaW8gb3IgdmlkZW8uCgpZb3UgYWdyZWUgdGhhdCBEU1UgbWF5LCB3aXRob3V0IGNoYW5naW5nIHRoZSBjb250ZW50LCB0cmFuc2xhdGUgdGhlCnN1Ym1pc3Npb24gdG8gYW55IG1lZGl1bSBvciBmb3JtYXQgZm9yIHRoZSBwdXJwb3NlIG9mIHByZXNlcnZhdGlvbi4KCllvdSBhbHNvIGFncmVlIHRoYXQgRFNVIG1heSBrZWVwIG1vcmUgdGhhbiBvbmUgY29weSBvZiB0aGlzIHN1Ym1pc3Npb24gZm9yCnB1cnBvc2VzIG9mIHNlY3VyaXR5LCBiYWNrLXVwIGFuZCBwcmVzZXJ2YXRpb24uCgpZb3UgcmVwcmVzZW50IHRoYXQgdGhlIHN1Ym1pc3Npb24gaXMgeW91ciBvcmlnaW5hbCB3b3JrLCBhbmQgdGhhdCB5b3UgaGF2ZQp0aGUgcmlnaHQgdG8gZ3JhbnQgdGhlIHJpZ2h0cyBjb250YWluZWQgaW4gdGhpcyBsaWNlbnNlLiBZb3UgYWxzbyByZXByZXNlbnQKdGhhdCB5b3VyIHN1Ym1pc3Npb24gZG9lcyBub3QsIHRvIHRoZSBiZXN0IG9mIHlvdXIga25vd2xlZGdlLCBpbmZyaW5nZSB1cG9uCmFueW9uZSdzIGNvcHlyaWdodC4KCklmIHRoZSBzdWJtaXNzaW9uIGNvbnRhaW5zIG1hdGVyaWFsIGZvciB3aGljaCB5b3UgZG8gbm90IGhvbGQgY29weXJpZ2h0LAp5b3UgcmVwcmVzZW50IHRoYXQgeW91IGhhdmUgb2J0YWluZWQgdGhlIHVucmVzdHJpY3RlZCBwZXJtaXNzaW9uIG9mIHRoZQpjb3B5cmlnaHQgb3duZXIgdG8gZ3JhbnQgRFNVIHRoZSByaWdodHMgcmVxdWlyZWQgYnkgdGhpcyBsaWNlbnNlLCBhbmQgdGhhdApzdWNoIHRoaXJkLXBhcnR5IG93bmVkIG1hdGVyaWFsIGlzIGNsZWFybHkgaWRlbnRpZmllZCBhbmQgYWNrbm93bGVkZ2VkCndpdGhpbiB0aGUgdGV4dCBvciBjb250ZW50IG9mIHRoZSBzdWJtaXNzaW9uLgoKSUYgVEhFIFNVQk1JU1NJT04gSVMgQkFTRUQgVVBPTiBXT1JLIFRIQVQgSEFTIEJFRU4gU1BPTlNPUkVEIE9SIFNVUFBPUlRFRApCWSBBTiBBR0VOQ1kgT1IgT1JHQU5JWkFUSU9OIE9USEVSIFRIQU4gRFNVLCBZT1UgUkVQUkVTRU5UIFRIQVQgWU9VIEhBVkUKRlVMRklMTEVEIEFOWSBSSUdIVCBPRiBSRVZJRVcgT1IgT1RIRVIgT0JMSUdBVElPTlMgUkVRVUlSRUQgQlkgU1VDSApDT05UUkFDVCBPUiBBR1JFRU1FTlQuCgpEU1Ugd2lsbCBjbGVhcmx5IGlkZW50aWZ5IHlvdXIgbmFtZShzKSBhcyB0aGUgYXV0aG9yKHMpIG9yIG93bmVyKHMpIG9mIHRoZQpzdWJtaXNzaW9uLCBhbmQgd2lsbCBub3QgbWFrZSBhbnkgYWx0ZXJhdGlvbiwgb3RoZXIgdGhhbiBhcyBhbGxvd2VkIGJ5IHRoaXMKbGljZW5zZSwgdG8geW91ciBzdWJtaXNzaW9uLgo=

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