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Sensor assembly and method for measuring forces and torques

  • US 9,274,014 B2
  • Filed: 03/06/2014
  • Issued: 03/01/2016
  • Est. Priority Date: 03/12/2013
  • Status: Active Grant
First Claim
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1. A sensor assembly comprising:

  • a base plate;

    a sensor member displaceable relative to said base plate;

    a spring arrangement having first and second stages reactive to displacement of said sensor member relative to said base plate with different resolutions of force and torque measurements being associated with said first and second stages, wherein said spring arrangement is configured to transition to said second stage after said first stage; and

    a light sensitive transducer for sensing displacement of said sensor member relative to said base plate and for generating corresponding output signals.

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