Welcome to CDC stacks |
Stacks Logo
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.
 
 
Help
Clear All Simple Search
Advanced Search
A Method for Estimating the Low Frequency Coupling Characteristics of a Ferrite-Cored Rod Antenna to a Long Conductor
Filetype[PDF-1.93 MB]


Details:
  • Alternative Title:
    Prog Electromagn Res M Pier M
  • Personal Author:
  • Description:
    Magnetic proximity detection systems (PDSs) used in underground mines occasionally generate false alarms when the miner-wearable component (MWC) is close to nearby conductors such as power cables. This is because the signals from the generators (antennas) of the PDS wirelessly couple to nearby cables, travel along these cables, and then couple back from the cable to a distant MWC to cause a false alarm. In order to manage such a false alarm, it is necessary to understand the basic near-field coupling characteristics from a generator to a long wire. Researchers from the National Institute for Occupational Safety and Health (NIOSH) have developed a method to measure such coupling characteristics for a ferrite-cored antenna to a straight wire. The method is introduced in this paper along with the test results.

  • Subject:
  • Pubmed ID:
    30595794
  • Pubmed Central ID:
    PMC6309894
  • Document Type:
    Journal Article
  • Funding:
    CC999999/Intramural CDC HHS/United States
  • Collection(s):
    CDC Public Access
  • Main Document Checksum:
No Related Documents.
You May Also Like:
  1. A Hybrid Approach for Efficient Modeling of Medium-Frequency Propagation in Coal Mines
    Personal Author:
    Brocker, Donovan E.; Sieber, Peter E.; Waynert, Joseph A.; Li, Jingcheng; Werner, Pingjuan L.; Werner, Douglas H.;
    Published Date:
    Mar 9 2015
    Source:
    IEEE Antennas Propag Mag. 174(1):164-176.
    Description:
    An efficient procedure for modeling medium frequency (MF) communications in coal mines is introduced. In particular, a hybrid approach is formulated and demonstrated utilizing ideal transmission line equations to model MF propagation in combination w...
    File Type:
    Filetype[PDF - 2.28 MB]
  2. Technical services for mine communications research : transmit antennas for portable VLF to MF wireless mine communications
    Personal Author:
    Lagace, Robert L.
    Corporate Authors:
    Arthur D. Little, Inc.. United States. Bureau of Mines..
    Published Date:
    May 1977
    Series:
    Open file report (United States. Bureau of Mines) ; 92-78
    Description:
    "An investigation was made of the feasibility of developing compact transmit antennas and/or other means to efficiently couple very low frequency (VLF) to medium frequency (MF) band radio energy between portable wireless communication units in coal m...
    File Type:
    Filetype[PDF - 5.20 MB]
  3. Evaluation of a signaling and warning system for underground mines
    Personal Author:
    Conti, Ronald S.; Yewen, Robert G.;
    Corporate Authors:
    Pittsburgh Research Center (U.S.)
    Published Date:
    May 1997
    Series:
    Report of investigations (National Institute for Occupational Safety and Health) ; 9641
    DHHS publication ; no. (NIOSH) 97-127
    Description:
    "A wireless signaling and warning system applicable to both coal and noncoal underground mines was evaluated. A TeleMagnetic Signalling Systems wireless ultra low frequency electromagnetic signaling system was installed at an experimental mine site a...
    File Type:
    Filetype[PDF - 1.05 MB]
  4. Simulation and Measurement of Medium-Frequency Signals Coupling From a Line to a Loop Antenna
    Personal Author:
    Damiano, Nicholas W.; Li, Jingcheng; Zhou, Chenming; Brocker, Donovan E.; Qin, Yifeng; Werner, Douglas H.; Werner, Pingjuan L.;
    Published Date:
    Oct 2016
    Source:
    IEEE Trans Ind Appl. 52(4):3527-3534
    Description:
    The underground-mining environment can affect radio-signal propagation in various ways. Understanding these effects is especially critical in evaluating communications systems used during normal mining operations and during mine emergencies. One of t...
    File Type:
    Filetype[PDF - 2.24 MB]
  5. Anticollision systems for large mine-haulage trucks
    Personal Author:
    Griffin, Russell E.
    Corporate Authors:
    United States. Bureau of Mines.
    Published Date:
    1988
    Series:
    Report of investigations (United States. Bureau of Mines) ; 9212
    Description:
    "With the development of larger mine-haulage trucks in recent years, the visual field of the driver has diminished correspondingly. Specifically, the operator's lack of direct vision in the right front area and directly to the rear constitutes a seri...
    File Type:
    Filetype[PDF - 8.89 MB]