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Two axes controller

  • US 4,150,803 A
  • Filed: 10/05/1977
  • Issued: 04/24/1979
  • Est. Priority Date: 10/05/1977
  • Status: Expired due to Term
First Claim
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1. An apparatus for controlling a mechanical element in angular or translational position, comprising:

  • a control stick;

    position transducer means driven by said control stick for generating a command signal that is a function of said control stick position;

    actuator means responsive to said command signal for driving said mechanical element;

    servo motor means for receiving said command signal and applying an inverse force to said control stick proportional to said command signal;

    force transducer means for measuring force on said mechanical element and generating a force signal that varies as a function of said force, and;

    switching means for selectively adding said force signal to said command signal applied to said servo motor;

    whereby the force on said control stick varies inversely as a function of said stick position alone or stick position in conjunction with the force on said mechanical element depending on said switching means position.

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