Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"Force-torque sensor"”.
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Manipulator identification and control using a base-mounted force/torque sensor
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1997.
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Mechanical Redesign and Fabrication of a 12 DOF Orthotic Lower Limb Exoskeleton and 6 Axis Force-Torque Sensor
… the design and implementation of a six axis force-torque sensor built into the foot of OLL-E. The purpose of this sensor is to provide feedback to the central control system and allow OLL-E to be self-balancing. This foot sensor design is calibrated and initial results are discussed and shown …
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The use of instrumented measures to describe lower extremity joint mechanics
… A set of instrumented measures consisting of a force/torque sensor and an angle sensor was created to quantitatively assess the mechanics of the lower extremity joints as a possible solution to the low repeatability of commonly used clinical tests. It was shown through the use of instrumentation …
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Quantifying prehension in persons with stroke post rehabilitation
… prior to training and after training. Downward force applied to the object during grasping was assessed using Nano17TM, a force/torque sensor system that is added to the reach to grasp test paradigm for the VR trained subjects. Results from total movement time, grasping time, and average applied …
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Handheld force-controlled ultrasound probe
An hand-held force controlled ultrasound probe has been developed. The controller maintains a prescribed contact force between the probe and a patient's body. The device will enhance the diagnostic capability of free-hand elastography, swept-force compound imaging, and make it easier for a …
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Autonomous tactile object exploration and estimation using simple sensors
… (consisting of a trackball mounted to a force/torque sensor on a sliding mechanism) and a fuzzy logic force controller were developed to overcome the difficulties inherent in force control on a stepper motor robot. A Kalman filter based quadric shape estimator was then used to describe …
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Development of a virtual reality video game using principal component analysis to map isometric force efforts for haptic feedback: A proof of concept
… The game is played by interacting with a force/torque sensor mounted onto the end effector of the robot and force feedback is given real time as participants aim to match force targets in a lower dimensional space. Preliminary results of a typically developing child indicate lower error …
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Analysis, Simulation, and Measurement of Micro-Vibrations in Reaction Wheels for High-Performance Imaging Missions
… vibrations, resulting from mechanical unbalance, torque ripple, and bearing imperfections, propagate through the satellite structure and induce line-of-sight (LoS) jitter. This thesis presents the analysis, simulation, and measurement of reaction wheel micro-vibrations to characterise their effect …
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Predictive analytics for smart manufacturing : use and impact from a systems thinking perspective
… sound data rather than acoustic emission or force/torque sensor data, which have been widely used for machine failure detection but have shown some limitations. The model is an important stepping stone for realizing an unmanned and fully automated manufacturing system, the so-called "smart …
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Post fatigue changes in the stability of cervical spine
… spine are a common problem in the modern workforce. An annual prevalence of 30% to 50% for neck pain among the general adult population was reported by the Task Force of Bone and Joint Decade on Neck Pain. Physical work demands, such as sustained static postures, sub-maximal repetitive arm …
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A demonstration and comparative analysis of haptic performance using a Gough-Stewart platform as a wearable haptic feedback device
… is usually processed visually but can lead to sensory overload. To mitigate this, the information processing can also be distributed through other modes of sensory such as auditory or haptic. The University of Texas at Austin's TeMoto hands-free interface reduces the burden on the operator of …
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A demonstration and comparative analysis of haptic performance using a Gough-Stewart platform as a wearable haptic feedback device
… is usually processed visually but can lead to sensory overload. To mitigate this, the information processing can also be distributed through other modes of sensory such as auditory or haptic. The University of Texas at Austin's TeMoto hands-free interface reduces the burden on the operator of …