NDLI: Look-Ahead Radar and Horizon Sensing for Coal Cutting Drums

Content Provider	IEEE Xplore Digital Library
Author	Bausov, I. Y. Stolarczyk, G. L. Stolarczyk, L. G. Koppenjan, Sc.D. S.
Copyright Year	2007
Description	Author affiliation: Stolar Research Corporation, 848 Clayton Highway, Raton, NM 87740 USA, lsf@stolarresearch.com (Koppenjan, Sc.D. S.) \|\| Stolar Research Corporation, 848 Clayton Highway, Raton, NM 87740 USA, iyb@stolarhorizon.com (Bausov, I. Y.) \|\| Stolar Research Corporation, 848 Clayton Highway, Raton, NM 87740 USA, larrystolar@aol.com (Stolarczyk, L. G.) \|\| Stolar Research Corporation, 848 Clayton Highway, Raton, NM 87740 USA, gls@stolarhorizon.com (Stolarczyk, G. L.)
Abstract	Safe and efficient coal extraction requires advanced radar subsystems that can be mounted on cutting drums of coal mining machines. A look-ahead radar (LAR) must solve the radio geophysics problem of transmitting an electromagnetic (EM) wave through at least 6.1 m (20 ft) of coal to detect an air- or water-filled void. An up- or down-looking radar must determine the distance to the coal bed sedimentary rock boundary. The reflected EM wave from the void or boundary rock must be processed in real time in the radar electronics to determine the physical distance to the void or coal bed boundary. The distance determination requires the in situ measurement of the coal electrical conductivity or relative dielectric constant. Up or down (horizon) sensing enables selective cutting near the undulating sedimentary rock boundaries of the coal bed to address coal quality and ground control issues. Both sensors require subsystems for dynamic electric power generation, real-time measurement of antenna rotation angle, detection of weak coal-boundary reflected EM waves concurrently with the suppression of the significant larger first air-coal reflected wave, processing to determine distance through coal, and RF modem transmission of measured data from the cutting drum to the body of the mining machine and along the segmented or coiled-tubing drill pipe. This paper describes the development of the GPR subsystems and field test results.
Starting Page	208
Ending Page	211
File Size	4206214
Page Count	4
File Format	PDF
ISBN	1424408865
DOI	10.1109/AGPR.2007.386553
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-27
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Antenna measurements Geophysical measurements Electric variables measurement Dielectric measurements Power measurement Rotation measurement Geophysics Electromagnetic scattering Radar detection Conductivity measurement look-ahead radar clean coal mining electromagnetic wave horizon sensing
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

RCS imaging measurement obtained by scanning parallel electromagnetic wave Beam using dielectric lens antenna

A fiber optic microwave power probe

Measurements of metamaterial-inspired, electrically small antenna systems

Microwave Irradiation Design Using Dielectric Lenses

Comparing electromagnetic induction and ground penetrating radar techniques for estimating soil moisture content

The measurement of the electric field on the surface above conducting objects immersed in a dissipative half-space

An improved scale model measurement facility for studying geophysical cross-borehole sensing

Remote sensing of water salinity

Simultaneous measurement of radiation pattern by modulated scattering element array

Look-Ahead Radar and Horizon Sensing for Coal Cutting Drums

Similar Documents

RCS imaging measurement obtained by scanning parallel electromagnetic wave Beam using dielectric lens antenna

A fiber optic microwave power probe

Measurements of metamaterial-inspired, electrically small antenna systems

Microwave Irradiation Design Using Dielectric Lenses

Comparing electromagnetic induction and ground penetrating radar techniques for estimating soil moisture content

The measurement of the electric field on the surface above conducting objects immersed in a dissipative half-space

An improved scale model measurement facility for studying geophysical cross-borehole sensing

Remote sensing of water salinity

Simultaneous measurement of radiation pattern by modulated scattering element array

Look-Ahead Radar and Horizon Sensing for Coal Cutting Drums