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Touch and motion (tactile sensor)
Proceedings. 1988 IEEE International Conference on Robotics and Automation, 2003A tactile sensor has been developed which uses a layer of photoelastic material as its primary sensing element. This sensor has several desirable characteristics, including very high resolution, adaptable shape, and edge enhancement. Interestingly, the sensor has a similar sensing mechanism to human skin. A mathematical model has been developed for the
Alec Cameron +2 more
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Biomimetic Tactile Sensor Array
Advanced Robotics, 2008The performance of robotic and prosthetic hands in unstructured environments is severely limited by their having little or no tactile information compared to the rich tactile feedback of the human ...
Nicholas Wettels +3 more
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Superresolution with an optical tactile sensor
2015 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2015Although superresolution has been studied to huge impact in visual imaging, it is relatively unexplored in tactile robotics. Here we demonstrate a novel optical sensor design (the TacTip) capable of achieving 40-fold localization superresolution to 0.1mm accuracy compared with a 4mm resolution between tactile elements.
Nathan F. Lepora, Benjamin Ward-Cherrier
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A tactile sensor for laparoscopic cholecystectomy
Surgical Endoscopy, 1997During laparoscopic surgery, surgeons observe the three-dimensional abdominal cavity on a two-dimensional TV monitor, which is a limitation. Another limitation is that surgeons are unable to estimate the softness of organs or tissues during laparoscopic surgery as they are only allowed to use instruments which touch objects and direct palpation is not ...
S, Matsumoto +7 more
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2013
The authors aim to realize a "Cell Tactile Sensor" which is integrated tactile receptors built by cultured cells. We regard the cells cultured on the PDMS membrane as the force receptors. We here report on interesting experimental results as follows: at first, we designed the positions of cells by self-organization which is due to mechanical ...
Kosuke Minzan +6 more
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The authors aim to realize a "Cell Tactile Sensor" which is integrated tactile receptors built by cultured cells. We regard the cells cultured on the PDMS membrane as the force receptors. We here report on interesting experimental results as follows: at first, we designed the positions of cells by self-organization which is due to mechanical ...
Kosuke Minzan +6 more
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Tactile resonance sensors in medicine
Journal of Medical Engineering & Technology, 2009Tactile sensors in general are used for measuring the physical parameters associated with contact between sensor and object. Tactile resonance sensors in particular are based on the principle of measuring the frequency shift, Deltaf, defined as the difference between a freely vibrating sensor resonance frequency and the resonance frequency measured ...
O A, Lindahl +5 more
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Characterization and simulation of tactile sensors
2010 IEEE Haptics Symposium, 2010The response of a tactile sensor system (consisting of the sensors themselves and the material covering them) was characterized via robotic experiments. A point spread function model of this response was developed for typical interaction forces, allowing the use of graphics and imaging techniques respectively for simulating and interpreting tactile ...
Zachary A. Pezzementi +3 more
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Optimal tactile sensor placement
Proceedings, 1989 International Conference on Robotics and Automation, 2003By intelligently locating a tactile sensor with respect to a sensed object it is possible to minimize the number of sensed points required to identify or localize the object. The author applies principles of statistical decision theory to determine the optimal sensing location to constrain an object model, maximally based on any prior object ...
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Proceedings. 1987 IEEE International Conference on Robotics and Automation, 2005
A new design of robot tactile sensor is described which features a highly compliant structure. Sensor compliance accommodates a degree of inaccuracy in robot positioning, aids stable grasping and resists damage. Silicone rubber sheet forms the outer skin of the sensor which is supported by a core of polyurethane foam.
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A new design of robot tactile sensor is described which features a highly compliant structure. Sensor compliance accommodates a degree of inaccuracy in robot positioning, aids stable grasping and resists damage. Silicone rubber sheet forms the outer skin of the sensor which is supported by a core of polyurethane foam.
openaire +1 more source