Record Display for the EPA National Library Catalog


Main Title Development of In Situ Prototype Diode Laser System to Monitor SO2 Across the Stack.
Author Hinkle, E. David ;
CORP Author Massachusetts Inst. of Tech., Lexington. Lincoln Lab.
Year Published 1973
Report Number EPA-68-02-0569; R2-73-218;
Stock Number PB-223 628
Additional Subjects ( Sulfur dioxide ; Gas detectors) ; ( Air pollution ; Gas detectors) ; ( Flue gases ; Gas detectors) ; ( Monitors ; Sulfur dioxide) ; ( Remote sensing ; Sulfur dioxide) ; Infrared detectors ; Design ; Errors ; Electric power plants ; Wiring diagrams ; Air pollution detection ; Semiconductor lasers ; Tunable lasers
Library Call Number Additional Info Location Last
NTIS  PB-223 628 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 77p
The report describes the development and testing of a semiconductor diode laser system to monitor sulfur dioxide by differential absorption of infrared radiation. Laser material was prepared and diodes fabricated which would operate in a temperature-independent region of SO2 absorption. Data concerning sensitivity and interferences from aerosols and other gases were recorded in the laboratory. Field tests were then performed at an operating coal-burning power generating station, with the results compared with SO2 measurements taken with a conventional chemical monitor. (Author)