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Measuring coal thicknessLaboratory tested concept, for measuring thickness of overhead coal using noncontacting sensor system coupled to controller and high pressure water jet, allows mining machines to remove virtually all coal from mine roofs without danger of cutting into overlying rock.
Document ID
19790000363
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Barker, C. (Univ. of Missouri at Rolla)
Blaine, J. (Univ. of Missouri at Rolla)
Geller, G. (Univ. of Missouri at Rolla)
Robinson, R. (Univ. of Missouri at Rolla)
Summers, D. (Univ. of Missouri at Rolla)
Tyler, J.
Date Acquired
August 10, 2013
Publication Date
April 1, 1980
Publication Information
Publication: NASA Tech Briefs
Volume: 4
Issue: 3
ISSN: 0145-319X
Subject Category
Materials
Report/Patent Number
MFS-23979
Accession Number
79B10363
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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