skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Calibration of optical particle-size analyzer

Abstract

This invention relates to a system for the calibration of an optical particle-size analyzer of the light-intercepting type for spherical particles, wherein a rotary wheel or disc is provided with radially-extending wires of differing diameters, each wire corresponding to a particular equivalent spherical particle diameter. These wires are passed at an appropriate frequency between the light source and the light detector of the analyzer. The reduction of light as received at the detector is a measure of the size of the wire, and the electronic signal may then be adjusted to provide the desired signal for corresponding spherical particles. This calibrator may be operated at any time without interrupting other processing.

Inventors:
 [1];  [2];  [1]
  1. (Oak Ridge, TN)
  2. (Knoxville, TN)
Issue Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
OSTI Identifier:
863268
Patent Number(s):
4135821
Assignee:
United States of America as represented by United States (Washington, DC) ORNL
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
calibration; optical; particle-size; analyzer; relates; light-intercepting; type; spherical; particles; rotary; wheel; disc; provided; radially-extending; wires; differing; diameters; wire; corresponding; particular; equivalent; particle; diameter; passed; appropriate; frequency; light; source; detector; reduction; received; measure; size; electronic; signal; adjusted; provide; desired; calibrator; operated; time; interrupting; processing; appropriate frequency; spherical particles; light source; light detector; electronic signal; particle diameter; particle-size analyzer; optical particle-size; spherical particle; /356/

Citation Formats

Pechin, William H., Thacker, Louis H., and Turner, Lloyd J. Calibration of optical particle-size analyzer. United States: N. p., 1979. Web.
Pechin, William H., Thacker, Louis H., & Turner, Lloyd J. Calibration of optical particle-size analyzer. United States.
Pechin, William H., Thacker, Louis H., and Turner, Lloyd J. Mon . "Calibration of optical particle-size analyzer". United States. https://www.osti.gov/servlets/purl/863268.
@article{osti_863268,
title = {Calibration of optical particle-size analyzer},
author = {Pechin, William H. and Thacker, Louis H. and Turner, Lloyd J.},
abstractNote = {This invention relates to a system for the calibration of an optical particle-size analyzer of the light-intercepting type for spherical particles, wherein a rotary wheel or disc is provided with radially-extending wires of differing diameters, each wire corresponding to a particular equivalent spherical particle diameter. These wires are passed at an appropriate frequency between the light source and the light detector of the analyzer. The reduction of light as received at the detector is a measure of the size of the wire, and the electronic signal may then be adjusted to provide the desired signal for corresponding spherical particles. This calibrator may be operated at any time without interrupting other processing.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {1}
}

Patent:

Save / Share: