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

Steinman, David A

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

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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:

Steinman, David A ^[1]

Ann Arbor, MI

Issue Date:: 1982-01-01

Research Org.:: KMS FUSION INC

OSTI Identifier:: 864089

Patent Number(s):: 4308750

Assignee:: United States of America as represented by United States (Washington, DC)

Patent Classifications (CPCs):: G - PHYSICS G01 - MEASURING G01B - MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS

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G - PHYSICS G01 - MEASURING G01B - MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS
G01B11/08 - for measuring diameters

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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. 
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                    Steinman, David A. Method and apparatus for determining diameter and wall thickness of minute hollow spherical shells.  United States.

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                    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.

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@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}

}

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

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