By Topic

Electrical conductivity and optical reflectivity of coal dust-rock dust-water mixtures

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Lansberry, T.A. ; Geneva Coll., Beaver Falls, PA, USA ; Badger, D.W. ; Sapko, M.J.

Researchers at the US Bureau of Mines have designed and constructed a portable near-infrared monochromatic reflectance meter that measures the concentration of rock dust in homogeneous coal-dust/rock-dust mixtures to within ±2 wt.% rock-dust over the range 0-100 wt.% rock dust. Unfortunately, the presence of moisture in the samples affects the accuracy of this instrument. The purpose of this research was to determine the feasibility of designing a meter that can automatically compensate for the presence of moisture in the dust and thereby avoid the necessity of drying the dust prior to testing. Specifically, this research was directed at determining if simultaneous measurement of the mixture's electrical conductivity and near-infrared reflectivity could be used to determine the mixture's moisture and rock-dust concentration simultaneously. It is concluded that the two-parameter approach is feasible

Published in:

Industry Applications, IEEE Transactions on  (Volume:26 ,  Issue: 1 )