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Detector for force/acceleration/magnetism with respect to components in multi-dimensional directions

  • US 5,437,196 A
  • Filed: 01/26/1993
  • Issued: 08/01/1995
  • Est. Priority Date: 02/04/1992
  • Status: Expired due to Fees
First Claim
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1. A force detector for detecting components in multi-dimensional directions of a force in an XYZ three-dimensional coordinate system, said detector comprising:

  • a fixed body (20) having a flexible portion (21) deformed when a force is applied thereto;

    a displacement body (10) supported by said flexible portion;

    first detection means (D1 to D5, E1 to E5) for detecting a distance between a first displacement surface (11a) defined at a portion of said displacement body and a first fixed surface (20a) opposite to said first displacement surface and defined at a portion of said fixed body;

    second detection means (D6 to D13, E6 to E13) for detecting a distance between a second displacement surface (12a, 12b, 12c, 12d) intersecting with said first displacement surface and defined at a portion of said displacement body and a second fixed surface (22a, 22b, 22c, 22d) opposite to said second displacement surface and defined at a portion of said fixed body; and

    one of operational or arithmetic means (30 to

         36) for arithmetically determining a force exerted on said displacement body every force components in the coordinate axis directions and moment components about the coordinate axes on the basis of a detection value obtained by said first detection means and a detection value obtained by said second detection means,wherein said first and second displacement surfaces are formed so that they are perpendicular to each other, and said first and second fixed surfaces are formed so that they are perpendicular to each other.

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