Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Feasibility Study of Coal Dust Measurement by Light Reflectance Photometry.

Authors
Pritts-I; Bertone-GA
Source
NTIS: PB/82-213927 :36 pages
Link
NIOSHTIC No.
10002410
Abstract
This report describes the design, fabrication, and testing of a prototype instrument that demonstrates the feasibility of determining respirable coal dust concentrations by light reflectance photometry. Coal dust is collected on a filter and the amount collected is continuously monitored by reflectance photometry. Light emission and detection is accomplished by reflective object sensors, which have both light source and detector in one chip. The use of a pulsed light source insures low drift characteristics of the measuring circuitry. The collection of the respirable coal dust on filters facilitates accurate calibration and also allows measurement verification by well-accepted gravimetric methods.
Publication Date
19810101
Document Type
CP; Final Contract Report;
Fiscal Year
1981
NTIS Accession No.
PB82-213927
NTIS Price
A04
Identifying No.
OFR 71-82
NIOSH Division
PRC;
Source Name
NTIS: PB/82-213927
Performing Organization
Mine Safety Appliances Company
TOP