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Optical rock dust meter field evaluation.

Authors
Greninger-N; Perlee-HE; Sapko-MJ
Source
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 9385, 1991 Jan; :1-11
Link
NIOSHTIC No.
10010986
Abstract
The U.S. Bureau of Mines has developed a portable meter for measuring the component concentrations in binary dust mixtures whose constituents have different optical reflectivities. The meter has been successfully tested with coal dust-rock dust mixtures taken from coal mines in Europe and the United States and fluorinated- carbon mixtures that change from carbon black to pure white during fluorination. Additional study has also substantiated the theoretical expressions used in the design of the meter.
Keywords
Optical-measurement; Reflectance; Safety-engineering; Dust-explosions; Optical-equipment; Mathematical-models; Optical-measuring-instruments; Limestone; Coal-dust; Reflectometers; Coal-mining
Publication Date
19910101
Document Type
IH; Report of Investigations
Fiscal Year
1991
NTIS Accession No.
PB92-152347
NTIS Price
A03
Identifying No.
RI-9385
NIOSH Division
PRC
Source Name
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 9385
State
PA
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