{
  "parameters": [
    {
      "aspect": {
        "name": "length",
        "ml_name": "as_length",
        "id": "AS3"
      },
      "measurand": null,
      "measurandtaxon": "SourceLengthFormSphericity",
      "id": 430,
      "name": "Sphericity",
      "quantitykind": "length",
      "definition": null,
      "optional": false
    },
    {
      "aspect": {
        "name": "length",
        "ml_name": "as_length",
        "id": "AS3"
      },
      "measurand": null,
      "measurandtaxon": "SourceLengthFormSphericity",
      "id": 431,
      "name": "Height",
      "quantitykind": "length",
      "definition": null,
      "optional": true
    },
    {
      "aspect": null,
      "measurand": null,
      "measurandtaxon": "SourceLengthFormSphericity",
      "id": 432,
      "name": "NumberOfPoints",
      "quantitykind": null,
      "definition": null,
      "optional": true
    },
    {
      "aspect": {
        "name": "plane-angle",
        "ml_name": "as_plane_angle",
        "id": "AS10"
      },
      "measurand": null,
      "measurandtaxon": "SourceLengthFormSphericity",
      "id": 433,
      "name": "StartAngle",
      "quantitykind": "plane-angle",
      "definition": "Rotational Angle from reference",
      "optional": true
    },
    {
      "aspect": {
        "name": "plane-angle",
        "ml_name": "as_plane_angle",
        "id": "AS10"
      },
      "measurand": null,
      "measurandtaxon": "SourceLengthFormSphericity",
      "id": 434,
      "name": "StopAngle",
      "quantitykind": "plane-angle",
      "definition": "Rotational Angle from reference",
      "optional": true
    },
    {
      "aspect": {
        "name": "plane-angle",
        "ml_name": "as_plane_angle",
        "id": "AS10"
      },
      "measurand": null,
      "measurandtaxon": "SourceLengthFormSphericity",
      "id": 435,
      "name": "Reference",
      "quantitykind": "plane-angle",
      "definition": "DIN, ISO, ASTM, ASME, or Federal G-Series Measurement Specifications  [plain text]",
      "optional": true
    }
  ],
  "external_references": [],
  "aspect": {
    "name": "length",
    "ml_name": "as_length",
    "id": "AS3"
  },
  "discipline": {
    "label": "Dimensional"
  },
  "id": "SourceLengthFormSphericity",
  "name": "Source.Length.Form.Sphericity",
  "definition": "Sphericity is a measure of how closely the shape of an object resembles that of a perfect sphere. For example, the sphericity of the balls inside a ball bearing determines the quality of the bearing, such as the load it can bear or the speed at which it can turn without failing. Sphericity is a specific example of a compactness measure of a shape. Defined by Wadell in 1935,[1] the sphericity, {\\displaystyle \\Psi }\\Psi , of a particle is the ratio of the surface area of a sphere with the same volume as the given particle to the surface area of the particle: where {\\displaystyle V_{p}}V_p is volume of the particle and {\\displaystyle A_{p}}A_p is the surface area of the particle. The sphericity of a sphere is unity by definition and, by the isoperimetric inequality, any particle which is not a sphere will have sphericity less than 1. Sphericity applies in three dimensions; its analogue in two dimensions, such as the cross sectional circles along a cylindrical object such as a shaft, is called roundness.",
  "deprecated": false,
  "replacement": "",
  "quantitykind": "length",
  "processtype": "Source",
  "qualifier": "",
  "result": "Sphericity",
  "result_quantity": "length"
}