Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Apparatus for Light Scattering Studies of Smoke Particles

Published

Author(s)

George W. Mulholland, D W. Weinert

Abstract

A facility for measuring the light scattered by smokes as a function of the scattering angle and linear polarization has been developed. By using monosize polystyrene calibration particles and filter collection for gravimeteric measurement, we are able for the first time to measure the differential (angular distribution) scattering cross section per mass of a flame generated smoke particle. This differential mass scattering cross section is a measure of the light scattering strength of a particle in units of area per mass. The light scattering apparatus used in these measurements has provided repeatable results over a dynamic signal range of 3 to 4 orders of magnitude. Uncertainties lie in the range of 10 % to 20 % and are mainly due to the angular averaging of the calibration factor. The method and apparatus developed was then applied to acetylene smoke, which was produced in a consistent and reproducible manner by a co-flow laminar diffusion burner.
Proceedings Title
International Conference on Automatic Fire Detection "AUBE '01", 12th. Proceedings. National Institute of Standards and Technology
Conference Dates
March 25-28, 2001
Conference Location
Gaithersburg, MD

Keywords

fire detection, fire detection systems, particles, light scattering, smoke, aerosols, computation, gravimeters

Citation

Mulholland, G. and Weinert, D. (2001), Apparatus for Light Scattering Studies of Smoke Particles, International Conference on Automatic Fire Detection "AUBE '01", 12th. Proceedings. National Institute of Standards and Technology, Gaithersburg, MD, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=916685 (Accessed June 16, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created March 25, 2001, Updated February 17, 2017