Welcome to CDC Stacks | Development Of A Closed Circuit TV Borehole Probe - 8884 | National Institute for Occupational Safety and Health
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
Development Of A Closed Circuit TV Borehole Probe
  • Published Date:
    9/1/1984
Filetype[PDF - 918.14 KB]


Details:
  • Personal Authors:
    Talley, Douglas
  • Description:
    This report describes a 4-inch diameter borehole probe which contains a low light level TV camera, magnetic compass, light illumination source, bottom/water detector sensor and a pointing angle sensor. The camera viewing angle is at a right angle to the probe's body. All data from the sensor is 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 down-link multiplexed on the same cable.

  • Collection(s):
    National Institute for Occupational Safety and Health
  • Supporting Files:
    No Additional Files
No Related Documents.
You May Also Like:
  1. Proposal for certification tests and standards for closed-circuit breathing apparatus
    Personal Author:
    Kyriazi, Nicholas
    Corporate Author:
    Pittsburgh Research Laboratory (National Institute for Occupational Safety and Health)
    Published:
    August 1999
    Series:
    Information circular (National Institute for Occupational Safety and Health) ; 9449
    DHHS publication ; no. (NIOSH) 99-144
    Description:
    Significant portions of the present Federal regulations for certification of closed-circuit breathing apparatus (42 CFR 84) are not quantitative. The human-subject testing portion of the regulations specifies activities rather than metabolic work rat...
    File Type:
    Filetype[PDF - 1.62 MB]
  2. New very high-pressure oxygen cylinders for use in closed-circuit self-contained self-rescuers (SCSRs)
    Corporate Author:
    National Institute for Occupational Safety and Health.
    Published:
    December 2016
    Series:
    Technology news (National Institute for Occupational Safety and Health) ; no. 555
    DHHS (NIOSH) publication ; no. 2017-111
    Description:
    New materials have allowed for a reduced size and weight of compressed gas cylinders that store pure oxygen at high pressures, giving manufacturers of closed-circuit self-contained self-rescuers (SCSRs) improved options for meeting the new standard f...
    File Type:
    Filetype[PDF - 317.13 KB]
  3. Degasification Of Virgin Pittsburgh Coalbed Through A Large Borehole
    Personal Author:
    Fields, H. H.; Krickovic, Stephen; Sainato, Albert; Zabetakis, M. G.;
    Published:
    1/1/1973
    Description:
    The Bureau of Mines is in the process of degasifying a virgin area in northern West Virginia from the base of an 839-foot -deep vertical borehole. An in situ gas pressure hole 199 feet long, and seven degasification holes ranging in depth from 500 to...
    File Type:
    Filetype[PDF - 1.98 MB]
  4. Hydraulic Stimulation Of A Surface Borehole For Gob Degasification
    Personal Author:
    Maksimovic, S. D.; Elder, C. H.; Kissell, Fred N.;
    Published:
    1/1/1977
    Description:
    The Bureau of Mines evaluated the hydraulic stimulation of a gob-degasification borehole to determine if this procedure would aid in degasifying a longwall panel. The stimulated borehole did not degasify the longwall panel as expected either before o...
    File Type:
    Filetype[PDF - 949.73 KB]
  5. Snacking on Television: A Content Analysis of Adolescents’ Favorite Shows
    Personal Author:
    Eisenberg, Marla E.; Larson, Nicole I.; Gollust, Sarah E.; Neumark-Sztainer, Dianne;
    Published:
    May 19 2016
    Source:
    Prev Chronic Dis. 13.
    Description:
    Introduction : Snacking is a complex behavior that may be influenced by entertainment media. Research suggests that snacking and unhealthy foods are commonly shown in programming that targets young audiences, but shows selected for study have been li...
    File Type:
    Filetype[PDF - 328.93 KB]