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Six-axis sensor

  • US 7,360,456 B2
  • Filed: 06/16/2004
  • Issued: 04/22/2008
  • Est. Priority Date: 06/17/2003
  • Status: Expired due to Fees
First Claim
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1. A 6-axis sensor for measuring 6-axis forces and moments or 6-axis accelerations and angular accelerations, externally applied, characterized by comprising:

  • a plurality of strain gauges disposed on one plane;

    a plurality of first diaphragms to which the plurality of strain gauges are attached;

    a first member comprising one of the plurality of first diaphragms;

    a second member comprising a second diaphragm opposed to the one of the plurality of first diaphragms and provided with a plurality of strain gauges disposed on one plane; and

    a connecting shaft connecting the opposed first and second diaphragms;

    wherein the plurality of first diaphragms are arranged around a central point of the plane at regular angular intervals and at the same distance from the central point;

    6-axis forces and moments applied between the first and second members are measured;

    the strain gauges of the first member and the strain gauges of the second member are disposed symmetrically with respect to a barycentric point of the 6-axis sensor; and

    either outputs of the strain gauges of the first member and the strain gauges of the second member are adopted if the other ouputs are out of a predetermined range.

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