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Title: Method and apparatus for determining diameter and wall thickness of minute hollow spherical shells

Abstract

Method and apparatus for determining diameter and wall thickness of hollow microspheres or shells wherein terminal velocities of shells traveling in fluid-filled conduits of differing diameters are measured. A wall-effect factor is determined as a ratio of the terminal velocities, and shell outside diameter may then be ascertained as a predetermined empirical function of wall-effect factor. For shells of known outside diameter, wall thickness may then be ascertained as a predetermined empirical function of terminal velocity in either conduit.

Inventors:
 [1]
  1. (Ann Arbor, MI)
Issue Date:
Research Org.:
KMS FUSION INC
OSTI Identifier:
864089
Patent Number(s):
4308750
Assignee:
United States of America as represented by United States (Washington, DC) OSTI
DOE Contract Number:  
AC08-78DP40030
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; apparatus; determining; diameter; wall; thickness; minute; hollow; spherical; shells; microspheres; terminal; velocities; traveling; fluid-filled; conduits; differing; diameters; measured; wall-effect; factor; determined; ratio; shell; outside; ascertained; predetermined; empirical; function; velocity; conduit; spherical shell; spherical shells; outside diameter; hollow microspheres; wall thickness; hollow spherical; determining diameter; /73/250/

Citation Formats

Steinman, David A. Method and apparatus for determining diameter and wall thickness of minute hollow spherical shells. United States: N. p., 1982. Web.
Steinman, David A. Method and apparatus for determining diameter and wall thickness of minute hollow spherical shells. United States.
Steinman, David A. Fri . "Method and apparatus for determining diameter and wall thickness of minute hollow spherical shells". United States. https://www.osti.gov/servlets/purl/864089.
@article{osti_864089,
title = {Method and apparatus for determining diameter and wall thickness of minute hollow spherical shells},
author = {Steinman, David A.},
abstractNote = {Method and apparatus for determining diameter and wall thickness of hollow microspheres or shells wherein terminal velocities of shells traveling in fluid-filled conduits of differing diameters are measured. A wall-effect factor is determined as a ratio of the terminal velocities, and shell outside diameter may then be ascertained as a predetermined empirical function of wall-effect factor. For shells of known outside diameter, wall thickness may then be ascertained as a predetermined empirical function of terminal velocity in either conduit.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {1}
}

Patent:

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