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Improved Coal-Thickness MeasurementSummed signals and dielectric-filled antenna improve measurement. Improved FM radar for measuring thickness of coal seam eliminates spectrum splitting and reduces magnitude of echo from front coal surface.
Document ID
19830000284
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Barr, T. A.
Date Acquired
August 11, 2013
Publication Date
April 1, 1984
Publication Information
Publication: NASA Tech Briefs
Volume: 8
Issue: 1
ISSN: 0145-319X
Subject Category
Electronic Systems
Report/Patent Number
MFS-23721
Accession Number
83B10284
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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