STEREOSCOPIC VISUALIZATION CAMERA AND INTEGRATED ROBOTICS PLATFORM WITH FORCE/TORQUE SENSOR NON-LINEARITY CORRECTION
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United States of America Patent
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Issued Date -
Apr 13, 2023
app pub date -
Sep 23, 2022
filing date -
Sep 24, 2021
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Abstract
New and innovative systems and methods for calibrating and correcting sensors associated with a collaborative robot are disclosed. An example system comprises: at least one robotic arm; a sensor affixed to a location on the robotic arm, wherein the sensor measures force and torque across six degrees of freedom (6DOF); a processor; and memory. The system may receive, from the sensor, sensor input in real-time that indicate a measured force or torque. The system may generate, in real-time, sensor corrections that correspond to offset, linear, and non-linear deviations of the measured force in each sensor axis. The sensor corrections may correspond to offset, linear, and non-linear cross-coupling of the measured force between two or more sensor axes. The sensor corrections may be determined by applying offset, linear, and non nonlinear corrections to each degree of freedom (DOF) from every other DOF.
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