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Title: Light collection device for flame emission detectors

Abstract

A light collection device for use in a flame emission detection system such as an on-line, real-time alkali concentration process stream monitor is disclosed which comprises a sphere coated on its interior with a highly diffuse reflective paint which is positioned over a flame emission source, and one or more fiber optic cables which transfer the light generated at the interior of the sphere to a detecting device. The diffuse scattering of the light emitted by the flame uniformly distributes the light in the sphere, and the collection efficiency of the device is greater than that obtainable in the prior art. The device of the present invention thus provides enhanced sensitivity and reduces the noise associated with flame emission detectors, and can achieve substantial improvements in alkali detection levels.

Inventors:
 [1];  [1];  [1]
  1. (Morgantown, WV)
Issue Date:
Research Org.:
National Energy Technology Laboratory, Pittsburgh, PA, and Morgantown, WV
OSTI Identifier:
867445
Patent Number(s):
4939376
Assignee:
United States of America as represented by United States (Washington, DC) NETL
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
light; collection; device; flame; emission; detectors; detection; on-line; real-time; alkali; concentration; process; stream; monitor; disclosed; comprises; sphere; coated; interior; highly; diffuse; reflective; paint; positioned; source; fiber; optic; cables; transfer; generated; detecting; scattering; emitted; uniformly; distributes; efficiency; obtainable; prior; provides; enhanced; sensitivity; reduces; noise; associated; achieve; substantial; improvements; levels; uniformly distribute; enhanced sensitivity; collection device; process stream; fiber optic; optic cable; light emitted; light generated; optic cables; collection efficiency; provides enhanced; flame emission; detecting device; light collection; substantial improvement; real-time alkali; /250/356/

Citation Formats

Woodruff, Stephen D., Logan, Ronald G., and Pineault, Richard L. Light collection device for flame emission detectors. United States: N. p., 1990. Web.
Woodruff, Stephen D., Logan, Ronald G., & Pineault, Richard L. Light collection device for flame emission detectors. United States.
Woodruff, Stephen D., Logan, Ronald G., and Pineault, Richard L. Mon . "Light collection device for flame emission detectors". United States. https://www.osti.gov/servlets/purl/867445.
@article{osti_867445,
title = {Light collection device for flame emission detectors},
author = {Woodruff, Stephen D. and Logan, Ronald G. and Pineault, Richard L.},
abstractNote = {A light collection device for use in a flame emission detection system such as an on-line, real-time alkali concentration process stream monitor is disclosed which comprises a sphere coated on its interior with a highly diffuse reflective paint which is positioned over a flame emission source, and one or more fiber optic cables which transfer the light generated at the interior of the sphere to a detecting device. The diffuse scattering of the light emitted by the flame uniformly distributes the light in the sphere, and the collection efficiency of the device is greater than that obtainable in the prior art. The device of the present invention thus provides enhanced sensitivity and reduces the noise associated with flame emission detectors, and can achieve substantial improvements in alkali detection levels.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {1}
}

Patent:

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