Propagation of EM Signals in Underground Mines

Details

• Personal Author:
  Cory, Terry S.
• Corporate Authors:
  United States. Bureau of Mines ; Collins Commercial Telecommunications Group. Circuit Switching Systems Division
• Description:
  "This report is a comprehensive summary of the results of the propagation measurements program conducted for the Bureau of Mines. Data were gathered in the medium frequency (mf) range from a cross sample of six mines representative of the industry having typical wireless requirements. From the data that were gathered, a logical method of data reduction is presented that culminates in a set of average attenuation characteristics for all mines visited. These characteristics define a typical mf wireless system when the communication range requirements are known. Direct through-the- earth propagation and the range enhancement mechanism due to coupling on-and-off conductors are evaluated and related to the planning of a typical wireless mf communications system." - NIOSHTIC-2
• Subjects:
  Occupational Health Safety
• Series:
  Mining Publications
• Document Type:
  Text
• Funding:
  H00366028
• Genre:
  Report
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  158 numbered pages
• NIOSHTIC Number:
  nn:10001377
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:e7586cb096073663debe7b61149ea79fe0c41b1b945e40cbc5b24a32e054806b3d3df1151a2bf961405a21e62f3a536a10b9d9c13934c40d85b923224f75bc13
• Download URL:
  https://stacks.cdc.gov/view/cdc/8890/cdc_8890_DS1.pdf
• File Type:
  [PDF - 3.08 MB ]