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DTSTART;TZID=Canada/Eastern:20200709T183000
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DESCRIPTION:Abstract - Josephson arbitrary waveform synthesizers (JAWS) are
  becoming a viable technology for national metrology institutes and indust
 ry to establish quantum standards of direct and alternating voltage. At th
 e National Measurement Institute of Australia (NMIA) we have extended the 
 application of the JAWS to provide a standard of both the magnitude and th
 e phase of harmonics in a distorted waveform. Harmonic analysis is critica
 l in a number of industrial applications such as electric power systems\, 
 power electronics\, characterization of systems and materials and acoustic
 s and vibration. At present\, in the calibrations of power analyzers\, the
  traceability of the magnitude of the harmonics is based on ac-dc transfer
  measurements. However\, there is a gap in the traceability of the phase o
 f the harmonics relative to the fundamental. The NMIA calibration system u
 ses a JAWS chip from the National Institute of Standards and Technology (N
 IST)\, USA\, a precision inductive voltage divider and a set of current sh
 unts designed and manufactured by NMIA. For distorted waveforms with harmo
 nic magnitudes from 5% to 40% of the fundamental\, the calibration system 
 can measure odd harmonics up to the 39th with magnitude uncertainties bett
 er than 0.001 % of the fundamental for voltage (from 0.01 V to 240 V) and 
 current (from 0.005 A to 20 A) waveforms. The best phase uncertainties ran
 ge from 0.001° to 0.010° (k = 2.0)\, depending on the harmonic number an
 d harmonic magnitude. We anticipate that the ability of the JAWS to genera
 te distorted waveforms with the lowest possible uncertainty in the magnitu
 de\, and phase spectra will make it a unique tool for low-frequency spectr
 um analysis.\n\nCo-sponsored by: CH07103 - Ottawa Section Chapter\,PE31\n\
 nSpeaker(s): Dimitrios Georgakopoulos\, \n\nAgenda: \nDATE: Thursday\, Jul
 y 09\, 2020.\nTIME: Webinar: 6:30 p.m. – 7:30 p.m.\n\nOttawa\, Ontario\,
  Canada
LOCATION:Ottawa\, Ontario\, Canada
ORGANIZER:branislav@ieee.org
SEQUENCE:9
SUMMARY:Webinar: "Josephson Arbitrary Waveform Synthesizer as a Quantum Sta
 ndard of Voltage and Current Harmonics" by Dr. Dimitrios Georgakopoulos\, 
 Senior Research Scientist\, National Measurement Institute\, Sydney\, Aust
 ralia
URL;VALUE=URI:https://events.vtools.ieee.org/m/233847
X-ALT-DESC:Description: <br /><p><span style="font-family: arial\, helvetic
 a\, sans-serif\; font-size: 12pt\;"><span style="color: #000080\;"><u><str
 ong>Abstract</strong></u></span>&nbsp\;- Josephson arbitrary waveform synt
 hesizers (JAWS) are becoming a viable technology for national metrology in
 stitutes and industry to establish quantum standards of direct and alterna
 ting voltage. At the National Measurement Institute of Australia (NMIA) we
  have extended the application of the JAWS to provide a standard of both t
 he magnitude and the phase of harmonics in a distorted waveform. Harmonic 
 analysis is critical in a number of industrial applications such as electr
 ic power systems\, power electronics\, characterization of systems and mat
 erials and acoustics and vibration. At present\, in the calibrations of po
 wer analyzers\, the traceability of the magnitude of the harmonics is base
 d on ac-dc transfer measurements. However\, there is a gap in the traceabi
 lity of the phase of the harmonics relative to the fundamental. The NMIA c
 alibration system uses a JAWS chip from the National Institute of Standard
 s and Technology (NIST)\, USA\, a precision inductive voltage divider and 
 a set of current shunts designed and manufactured by NMIA. For distorted w
 aveforms with harmonic magnitudes from 5% to 40% of the fundamental\, the 
 calibration system can measure odd harmonics up to the 39th with magnitude
  uncertainties better than 0.001 % of the fundamental for voltage (from 0.
 01 V to 240 V) and current (from 0.005 A to 20 A) waveforms. The best phas
 e uncertainties range from 0.001&deg\; to 0.010&deg\; (<em>k</em> = 2.0)\,
  depending on the harmonic number and harmonic magnitude. We anticipate th
 at the ability of the JAWS to generate distorted waveforms with the lowest
  possible uncertainty in the magnitude\, and phase spectra will make it a 
 unique tool for low-frequency spectrum analysis.</span></p><br /><br />Age
 nda: <br /><p><span style="font-family: arial\, helvetica\, sans-serif\; f
 ont-size: 12pt\;"><strong>DATE</strong>: Thursday\, July 09\, 2020.</span>
 <br /><span style="font-family: arial\, helvetica\, sans-serif\; font-size
 : 12pt\;"><strong>TIME</strong>:&nbsp\; Webinar: 6:30 p.m. &ndash\; 7:30 p
 .m.</span></p>
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