Development of a closed circuit TV borehole probe

Details

• Personal Author:
  Talley, Douglas
• Corporate Authors:
  United States. Bureau of Mines ; Design Engineering Laboratories, Inc.
• Description:
  "This report describes a 4-in-diam borehole probe that contains a low light level television camera, magnetic compass, light illumination source, bottom-water detector sensor, and a point angle sensor. The camera viewing angle is at a right angle to the probe's body. All data from the sensor are multiplexed into the closed-circuit camera video for transmission on a single 50-ohm coaxial cable to a surface control unit. Likewise, control of the probe's power, zoom lens, focus, panning, and aperture is accomplished via a downlink multiplexed on the same cable." - NIOSHTIC-2
  
  NIOSH no. 10004671
  
  
• Subjects:
  Occupational Health Safety
• Series:
  Mining Publications
• Subseries:
  Open File Report
• Document Type:
  Text
• Funding:
  H0308041
• Genre:
  Report
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  22 numbered pages
• NIOSHTIC Number:
  nn:10004671
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:61837a961406989130aa86c0a5cdd663f6737027cafa61d4bc29df45a9ea95b97b80b5d2479273d90da4a744d5e9fda16d4e6e3692ba0f86b665f067716b8a7d
• Download URL:
  https://stacks.cdc.gov/view/cdc/8884/cdc_8884_DS1.pdf
• File Type:
  [PDF - 918.14 KB ]