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DTSTART:20190310T030000
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DTSTAMP:20190925T195527Z
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DTSTART;TZID=Canada/Eastern:20190409T180000
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DESCRIPTION:Time reversal has emerged as a very interesting technique with 
 potential applications in various fields of engineering. It has received a
  great deal of attention in recent years\, essentially in the field of aco
 ustics\, where it was first developed by Prof. Fink and his team in the 19
 90s. In the past decade\, the technique has also been used in the field of
  electromagnetics and applied to various other areas of electrical and com
 puter engineering. In particular\, the technique has been successfully app
 lied in the fields of electromagnetic compatibility (EMC) and power system
 s\, leading to mature technologies in source-location identification with 
 unprecedented performance compared to classical approaches. It is expected
  that the fields of application of electromagnetic time reversal (EMTR) wi
 ll continue to grow in the near future.\n\nThis talk presents the theoreti
 cal basis of the electromagnetic time reversal. It starts with a discussio
 n of the notion of time in physics and it goes on to present three approac
 hes that can be used to effectively make a system go back in time\, in the
  sense that it retraces the path it came from in the immediate past. The t
 ime reversal invariance of physics laws is then described with special att
 ention given to the time reversal invariance of Maxwell’s equations. The
  concept of time reversal cavity\, and the use of time reversal as a means
  of refocusing electromagnetic waves is then described. Finally\, the appl
 ication of Electromagnetic Time Reversal in lightning location and fault l
 ocation in electrical networks is presented and discussed.\n\nRefreshments
  will be served. OIQ (Quebec Order of Engineers) members may claim this ev
 ent for continuing education hours provided that it is related to the memb
 er's professional activities as defined in: OIQ Règlement sur la formatio
 n continue article 6.\n\nSpeaker(s): Prof. Farhad Rachidi\, \n\nRoom: 603\
 , Bldg: McConnell Engineering Building\, McGill University\, 3480 Rue Univ
 ersity\, Montreal\, Quebec\, Canada\, H3A 2K6
LOCATION:Room: 603\, Bldg: McConnell Engineering Building\, McGill Universi
 ty\, 3480 Rue University\, Montreal\, Quebec\, Canada\, H3A 2K6
ORGANIZER:a.pinchuk@ieee.org
SEQUENCE:3
SUMMARY:Electromagnetic Time Reversal and its Application to EMC
URL;VALUE=URI:https://events.vtools.ieee.org/m/197031
X-ALT-DESC:Description: <br /><p>Time reversal has emerged as a very&nbsp\;
 interesting technique with potential applications in various fields of&nbs
 p\;engineering. It has received a great deal&nbsp\;of attention in recent 
 years\,&nbsp\;essentially in the field of acoustics\, where it was first d
 eveloped by Prof. Fink&nbsp\;and his team in the 1990s. In the past&nbsp\;
 decade\, the technique has also been used&nbsp\;in the field of electromag
 netics and applied to various other areas of&nbsp\;electrical and computer
 &nbsp\;engineering. In particular\, the technique has been&nbsp\;successfu
 lly applied in the fields of electromagnetic compatibility (EMC) and&nbsp\
 ;power systems\,&nbsp\;leading to mature technologies in source-location i
 dentification&nbsp\;with unprecedented performance compared to classical a
 pproaches. It is expected&nbsp\;that the fields of application of electrom
 agnetic time reversal (EMTR) will&nbsp\;continue to grow in the near futur
 e.</p>\n<p>This talk presents&nbsp\;the theoretical basis of the electroma
 gnetic time reversal. It starts&nbsp\;with a discussion of the&nbsp\;notio
 n of time in physics and it goes on to present&nbsp\;three approaches that
  can be used to effectively make a system&nbsp\;go back in time\, in the s
 ense that it&nbsp\;retraces the path it came from in the immediate past. T
 he time reversal invariance of physics laws is then described with special
 &nbsp\;attention&nbsp\;given to the time reversal invariance of Maxwell&rs
 quo\;s equations. The concept of&nbsp\;time reversal cavity\, and the use 
 of time reversal as a means of refocusing&nbsp\;electromagnetic&nbsp\;wave
 s is then described. Finally\, the application of Electromagnetic Time Rev
 ersal in lightning location and fault location in electrical networks is p
 resented and discussed.</p>\n<p><strong>Refreshments will be served. OIQ (
 Quebec Order of Engineers) members may claim this event for continuing edu
 cation hours provided that it is related to the member's professional acti
 vities as defined in: OIQ R&egrave\;glement sur la formation continue arti
 cle 6</strong>.</p>
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