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:
  • 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.

  • Supporting Files:
    No Additional Files
No Related Documents.
You May Also Like: