Theory and Practice of Near-Field Electromagnetic Ranging

Details

• Personal Author:
  Schantz HG
• Description:
  This paper illustrates the divergence of phase, signal, and energy velocities in the near field by employing space-time diagrams of the evolution of near-fields. In addition this paper describes near-field link and impedance relations a near-field phase diagram for electrically small quadrature transmitters. Near-field physics enables near-field electromagnetic ranging systems in a variety of modes for a diverse range of applications. This paper summarizes recent results applying near-field electromagnetic ranging to a Signal-of-Opportunity Location Device (SOLD) implementation. Q-Track tested this system in realistic environments including a multi-story building and underground. SOLD yielded an rms accuracy of 26cm when returning to a calibration point and 46cm rms between calibration points. [Description provided by NIOSH]
• Subjects:
  Electrical Equipment And Supplies Occupational Health Safety
• Keywords:
  Electromagnetic Energy Electromagnetic Wave Transmission Electronic Devices Signal Devices Signaling Systems
• Publisher:
  The Institute of Navigation
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Proceedings
• Place as Subject:
  Alabama ; California ; OSHA Region 4 ; OSHA Region 9
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• NIOSHTIC Number:
  nn:20058705
• Citation:
  Proceedings of the 2012 International Technical Meeting of The Institute of Navigation, January 30 - February 1, 2012, Newport Beach, California. Manassas, VA: The Institute of Navigation, 2012 Jan; :978-1013
• Federal Fiscal Year:
  2012
• NORA Priority Area:
  Services ; Public Safety
• Performing Organization:
  Q-Track Corporation, Huntsville, Alabama
• Peer Reviewed:
  False
• Start Date:
  20110901
• Source Full Name:
  Proceedings of the 2012 International Technical Meeting of The Institute of Navigation, January 30 - February 1, 2012, Newport Beach, California
• End Date:
  20120529
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:5c4316b65da6d84c5d9ffbc1136c9fab51c5b2330830afaa041094357dd3b6b810f7c4730d5be4ad3201e22fdceeefaf279172e44d6012e94fd3554b3300b54b
• Download URL:
  https://stacks.cdc.gov/view/cdc/223106/cdc_223106_DS1.pdf
• File Type:
  [PDF - 1.15 MB ]