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Mining Publication: A Spatial/Spectral Domain Microwave Coal Seam Imaging Sensor-Progress in Signal Processing
Keywords: Coal mining Nonionizing radiation Roof quality Signalling
This page is archived for historical purposes and is no longer being maintained or updated. Contact NIOSH Mining if you need an accessible version.
Original creation date: July 1994
Authors: RL Chufo
Conference Paper - July 1994
Download PDF Document (0.24 MB)
12th West Virginia University International Mining Electrotechnology Conference, July 27-79, 1994; 1-3
The paper, An Electromagnetic Roof and Rib Thickness Sensor presented at the 12th WVU International Mining Electrotechnology Conference in 1992, presented the results of roof coal thickness measurements in underground mines and rib coal thickness measurements in highwall mines. The microwave sensor described uses a unique spatial modulation scheme created by antenna motion, along with frequency domain signal processing, to solve the problem of media, target, and antenna dispersion. This paper further describes the advantages of the unique frequency domain signal processing technology chosen by the U.S. Bureau of Mines in extending previously reported one dimensional thickness measurement technology to the generation of a full three-dimensional underground image of the underground environment.
Image of publication A Spatial/Spectral Domain Microwave Coal Seam Imaging Sensor-Progress in Signal ProcessingConference Paper - July 1994
Download PDF Document (0.24 MB)
12th West Virginia University International Mining Electrotechnology Conference, July 27-79, 1994; 1-3
See Also
ARBS - Analysis of Roof Bolt Systems - 2.5.02
Effects of Stimulation Treatments on Coalbeds and Surrounding Strata: Evidence from Underground Observations
Geologic Hazards and Roof Stability in Coal Mines
Medium-Frequency Propagation in Coal Mines
Modeling and Data Analysis of 50 to 5000 kHz Radio Wave Propagation in Coal Mines
Passive Fiber Optic System for Locating, Tracking, and Communicating with Personnel in Coal Mines
Refuge Alternatives in Underground Coal Mines
Reinforcing Coal Mine Roof with Polyurethane Injection: 4 Case Studies
Theory on the Propagation of UHF Radio Waves in Coal Mine Tunnels
Wireless Mesh Mine Communication System
Page last reviewed: September 21, 2012
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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