Details:

Personal Author:
Talley, Douglas. ;
Corporate Authors:
United States. Bureau of Mines. ; Design Engineering Laboratories, Inc. ;
United States. Bureau of Mines. ; Design Engineering Laboratories, Inc. ; Less -
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
Subject:
[+]
Borehole Mining.
Closed-circuit Television -- Industrial Applications.
Mining Engineering.

Series:
Open file report (United States. Bureau of Mines) ; 89-85; Mining research contract report ;
Open file report (United States. Bureau of Mines) ; 89-85; Mining research contract report ; Less -
Document Type:
Report ;
Funding:
H0308041 ;
Collection(s):
National Institute for Occupational Safety and Health
Main Document Checksum:
[+]
urn:sha256:1258fcfd3e7c8634bcc66423f9d7265ecfc239dd9fc375d1f3c12f7107606e2a
File Type:

Supporting Files

• No Additional Files

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