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

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, D A

Issue Date:: 1980-05-30

OSTI Identifier:: 6891284

Assignee:: Dept. of Energy

DOE Contract Number:: AC08-78DP40030

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; LASER TARGETS; MEASURING METHODS; MICROSPHERES; SHELLS; SPECIFICATIONS; THERMONUCLEAR FUELS; THICKNESS; WALLS; DIMENSIONS; FUELS; TARGETS; 060201* - Fusion Fuels- Fabrication & Testing- (1980-1987)

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                    Steinman, D A. Method and apparatus for determining diameter and wall thickness of minute hollow spherical shells.  United States: N. p., 1980. 
        Web.

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

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

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@article{osti_6891284,

  title        = {Method and apparatus for determining diameter and wall thickness of minute hollow spherical shells},

  author       = {Steinman, D 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         = {1980},

  month        = {5}

}

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