Record Display for the EPA National Library Catalog


Main Title Development of Instrumentation for Monitoring Carbon Fiber Emission.
Author Tague, D. L. ;
CORP Author TRW Defense and Space Systems Group, Redondo Beach, CA. Systems Engineering and Development Div.;Environmental Sciences Research Lab., Research Triangle Park, NC.
Year Published 1983
Report Number EPA-68-02-3273; EPA-600/3-83-056;
Stock Number PB83-233726
Additional Subjects Monitors ; Carbon fibers ; Particles ; Air pollution ; Design criteria ; Performance evaluation ; Air pollution detection
Library Call Number Additional Info Location Last
NTIS  PB83-233726 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 77p
This document reports the design of an electrical instrument which utilizes a variable capacitance in one leg of an R-C feedback network to provide discriminatory information regarding the air stream particulate materials. Sufficient testing was performed on the breadboard to validate system concept. The current instrument is counting fiber mass and indicating fiber diameters to yield an approximate count of individual fibers. Its operational range has a lower limit of 10000 fiber/cu m and an upper limit internally restricted for this breadboard state to 2 x 10 to the 8th power fibers/cu m. The program scope did not allow completion of a prototype design; therefore, emphasis is placed on recommendations to complete design efforts.