Improved coal interface detector
By: Keith C. Roe, Ronald C. Wittmann ; prepared for Department of Energy, Pittsburgh Mining Technology Center.
Contributors: Wittmann, Ronald C.; Pittsburgh Mining Technology Center (U.S.); Center for Electronics and Electrical Engineering (U.S.). Electromagnetic Fields Division.
Series: NBSIR -- 82-1663.; NBSIR -- 1663.
Publisher: U.S. Dept. of Commerce, National Bureau of Standards; National Technical Information Service, distributor]
Published: 1982
Place of publication: Boulder, Colo; [Springfield, VA
Language: eng
Number of pages: 44
Subjects: Coal -- United States -- Thermal properties.
Notes: "Final report."

"Electromagnetic Fields Division, National Engineering Laboratory, National Bureau of Standards, U.S. Department of Commerce."

"May 1982."

Includes bibliographical references.