Bio Inspired Tactile Sensing Analysis Of The Inherent Characteristics Of A Vibrissa Like Tactile Sensor
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Bio Inspired Tactile Sensing
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Author : Moritz Scharf
language : en
Publisher: BoD – Books on Demand
Release Date : 2021-01-01
Bio Inspired Tactile Sensing written by Moritz Scharf and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-01-01 with Technology & Engineering categories.
The transfers of natural mechanisms and structures into artificial, technical applications are successful approaches for innovation and become more important nowadays. The concept of Biomechatronics provides a structured framework to do so. Following these ideas, this work analyses a novel tactile sensor inspired by natural vibrissae. The sense of touch is an indispensable part of the sensory system of living beings. In, e.g., rats, the so-called vibrissal system, including long sensory hairs around the muzzle of the animals (vibrissae), is an essential part of tactile perception. Rats can determine the location, shape, and texture of an object by touching it with their vibrissae. Transferring these abilities to an artificial sensor design, the interaction between the hair/sensor shaft and different objects are analyzed. The sensor/hair shaft fulfills different functions in terms of a preprocessing of the captured signals. Therefore, by knowing and controlling these effects, the captured signals can be optimized in a way that particular information inside the captured signals is pronounced.
Bio Inspired Tactile Sensing Analysis Of The Inherent Characteristics Of A Vibrissa Like Tactile Sensor
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Author : Moritz Scharff
language : en
Publisher:
Release Date : 2020
Bio Inspired Tactile Sensing Analysis Of The Inherent Characteristics Of A Vibrissa Like Tactile Sensor written by Moritz Scharff and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with categories.
Die Weiterentwicklung taktiler Sensoren gewinnt an Bedeutung bspw. durch eine verstärkte Anwendung taktiler Sensoren zur Navigation in unbekannten Umgebungen von autonomen mobilen Robotern. Eine Möglichkeit taktile Sensoren weiter zu entwickeln ist, sich - wie auch schon andere Entwicklungen zeigen - der Natur zu bedienen, Vorbilder zu identifizieren, diese fundamental zu analysieren und als wesentlich befundene Eigenschaften und Funktionstüchtigkeiten zu adaptieren. Ratten besitzen auffällige Tasthaare an beiden Seiten der Schnauze, sogenannte Vibrissen. Diese sind gekennzeichnet durch einen langen, schlanken und natürlich vorgekrümmten Haarschaft mit konischem Querschnittsverlauf. Der Haarschaft wird von einem Haarfollikel gehalten, der sich unter der Haut befindet und in dem überdies Mechanorezeptoren zur Reizdetektion zu finden sind. Während der Erkundung von unbekannten Umgebungen und Objekten setzen Ratten ihre Vibrissen ein, um bspw. die Form oder Textur eines Objektes zu bestimmen, indem die Vibrisse daran entlang bewegt wird. Die Informationsaufnahme wird im Haarfollikel durch die Mechanorezeptoren realisiert. Die vorliegende Arbeit leistet einen Beitrag zum übergeordneten Ziel, die Eigenschaften und Einsatzmöglichkeiten dieses komplexen und hochentwickelten Sensorsystems der Natur für technische Anwendungen nutzbar zu machen. Die Eigenschaften einer Vibrisse sind synergetisch und beeinflussen ihre Funktionen in bedeutendem Maß. Deshalb wird das natürliche Vorbild detailliert analysiert und mit den Konzepten des biomechatronischen Systems und des Reizleitungsapparats beschrieben und auf dieser Basis ein Vibrissen-ähnlicher Sensor entworfen, um die inhärenten Eigenschaften eines solchen Sensorsystems zu untersuchen. Um die Funktionstüchtigkeit des entworfenen Protoyps, aufgebaut auf Basis der detaillierten Vorabanalyse, zu untersuchen, werden verschiedene Testobjekte, einschließlich verschiedener Oberflächenbeschaffenheiten, mit dem Sensor vermessen. Anhand der aufgezeichneten Messsignale zeigt sich, dass ein Objekt durch seine generelle Form sowie seine makroskopische und mikroskopische Oberflächenstruktur beschrieben werden kann. Die genannten Informationen überlagern sich in den gemessenen Signalen und müssen für eine weiterführende Auswertung extrahiert werden. Der Abstand zwischen Sensorlagerung und Objekt hat entscheidenden Einfluss. Makroskopische Oberflächenelemente lassen sich im Abstand von 80% der Länge des Sensorschafts besonders gut detektieren. Ein mittlerer Abstand, ca. 60% der Länge des Sensorschafts, unterstützt die Erfassung der Eigenschaften einer mikroskopischen Textur. Hingegen ist ein kleiner Abstand von 45% der Sensorschaftlänge besonders geeignet zur Detektion der generellen Form des Objekts. Diese Effekte sind in enger Verbindung zur Elastizität des Sensorschafts zu interpretieren. Beispielsweise verhindert die starke Krümmung des Sensorschafts in Folge eines kleinen Objektabstandes eine Detektion von makroskopischen Oberflächenelementen wie Rillen und Stufen, da sich der Sensorschaft in dieser Konfiguration wie ein adaptiver morphologischer Filter auswirkt und damit eine inhärente Eigenschaft des Sensorsystems ist. Der Übergang zwischen der makroskopischen und mikroskopischen Oberflächenstruktur wird durch den Durchmesser der Spitze des Sensorschafts bestimmt. Oberflächenstrukturelemente, die kleiner als dieser Durchmesser sind, gehören zur mikroskopischen Oberflächenstruktur. Daraus folgt, dass auch der Durchmesser der Spitze eine inhärente Eigenschaft ist. Eine weitere inhärente Eigenschaft wird bei der Detektion einer mikroskopischen Oberflächenstruktur erkennbar. Wenn der, sich im Kontakt befindende, stark verformte, Sensorschaft so bewegt wird, dass die konkave Seite des Sensorschafts in Bewegungsrichtung zeigt, werden die erfassten Signale verstärkt - im Vergleich zur entgegengesetzten Bewegungsrichtung. Unter Berücksichtigung der genannten und weiterer Ideen, wird der durch eine natürliche Vibirsse inspirierte Sensor in der vorliegenden Arbeit untersucht.
Active Touch Sensing
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Author : Robyn Grant
language : en
Publisher: Frontiers E-books
Release Date : 2014-07-14
Active Touch Sensing written by Robyn Grant and has been published by Frontiers E-books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-07-14 with Human-machine systems categories.
Active touch can be described as the control of the position and movement of tactile sensing systems to facilitate information gain. In other words, it is finding out about the world by reaching out and exploring—sensing by ‘touching’ as opposed to ‘being touched’. In this Research Topic (with cross-posting in both Behavioural Neuroscience and Neurorobotics) we welcomed articles from junior researchers on any aspect of active touch. We were especially interested in articles on the behavioral, physiological and neuronal underpinnings of active touch in a range of species (including humans) for submission to Frontiers in Behavioural Neuroscience. We also welcomed articles describing robotic systems with biomimetic or bio-inspired tactile sensing systems for publication in Frontiers in Neurorobotics.
Modelling Of A Bio Inspired Tactile Sensor Mimicking The Responses Of Human Mechanoreceptors
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Author : Nor Syamimi Mohamad Sabri
language : en
Publisher:
Release Date : 2016
Modelling Of A Bio Inspired Tactile Sensor Mimicking The Responses Of Human Mechanoreceptors written by Nor Syamimi Mohamad Sabri and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
The objectives of this study are as follows to propose a bio inspired tactile sensorequipped with tactile sensing elements covering both static and dynamic components of mechanoreceptors; to assess the feasibility of replicating the function of fast adapting (FA) and slow adapting (SA) receptors using piezoelectric and piezoresistive components respectively, by using FEA simulations software COMSOL Multiphysics v 5.1; to propose a unit of a bio inspired tactile sensor with a suitable ridge dimensions including the size of the proposed strain gauge and PVDF thin film. The tactile sensor was built in mimicking the human glabrous skin properties. The skin structure was also ridged to improve the efficiency of both static and dynamic force detection in normal and shear directions. The scopes of the study are to address the optimum ridge shape, the height of the modelled epidermal ridge and to identify the optimum sensor placement (the depth below the skin surface) of the modelled bio inspired tactile sensor. Also, seek to obtain the shape and size of modelled strain gauge as well as the best strain gauges orientation with ability to predict the component of force in x,y and z directions. Finally, to produce and verified the PVDF output.
Vibrissa Inspired Tactile Sensing
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Author : Lukas Merker
language : en
Publisher:
Release Date : 2022*
Vibrissa Inspired Tactile Sensing written by Lukas Merker and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022* with categories.
Artificial Tactile Sensing In Biomedical Engineering
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Author : Siamak Najarian
language : en
Publisher: McGraw Hill Professional
Release Date : 2009-05-18
Artificial Tactile Sensing In Biomedical Engineering written by Siamak Najarian and has been published by McGraw Hill Professional this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-05-18 with Technology & Engineering categories.
Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product. Master Artificial Tactile Sensing Design for Biomedical Engineering Applications Filled with high-quality photographs and illustrations, including some in color, this definitive guide details the design and manufacturing of artificial tactile systems and their applications in surgical procedures. Artificial Tactile Sensing in Biomedical Engineering explains the fundamentals of the human sense of touch and the latest techniques for artificially replicating it. The book describes the mechanistic principles of static and dynamic tactile sensors and discusses cutting-edge biomedical applications, including minimally invasive surgery, tumor detection, robotic surgery, and surgical simulations. Artificial Tactile Sensing in Biomedical Engineering covers: Capacitive, magnetic, inductive, conductive elastomeric, optical, and thermal sensors Strain gauge and piezoelectric sensors Tactile sensing in surgery and palpation Tactile image information through palpation Tumor detection via artificial tactile sensing Estimating tumor parameters using the finite element method and an artificial neural network Determination of mechanical properties of biological tissues Tactile sensing in remote and robotic surgery Haptics application in surgical simulation
Development Of A Bio Inspired Magnetostrictive Flow And Tactile Sensor
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Author : Michael Adam Marana
language : en
Publisher:
Release Date : 2012
Development Of A Bio Inspired Magnetostrictive Flow And Tactile Sensor written by Michael Adam Marana and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
Development Of A Bio Inspired Mems Based Tactile Sensor Array For An Artificial Finger
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Author : Hassena Bashir Muhammad
language : en
Publisher:
Release Date : 2011
Development Of A Bio Inspired Mems Based Tactile Sensor Array For An Artificial Finger written by Hassena Bashir Muhammad and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.
Vibrissa Based Design Of Tapered Tactile Sensors For Object Sensing
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Author : Carsten Behn
language : en
Publisher:
Release Date : 2017
Vibrissa Based Design Of Tapered Tactile Sensors For Object Sensing written by Carsten Behn and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
The Biomechanics Of The Tactile Perception Of Friction
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Author : Laurence Willemet
language : en
Publisher: Springer Nature
Release Date : 2022-10-31
The Biomechanics Of The Tactile Perception Of Friction written by Laurence Willemet and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-10-31 with Computers categories.
Humans rely on their sense of touch to perceive subtle movements and micro slippages to manipulate an impressive range of objects. This incredible dexterity relies on fast and unconscious adjustments of the grip force that holds an object strong enough to avoid a catastrophic fall yet gentle enough not to damage it. The Biomechanics of the Tactile Perception of Friction covers how the complex mechanical interaction is perceived by the nervous system to quickly infer the state of the contact for a swift and precise regulation of the grip. The first part focuses on how humans assess friction at the contact initialization and the second part highlights an efficient coding strategy that the nervous system might use to continuously adjust the grip force to keep a constant safety margin before slippage. Taken together, these results reveal how the perception of frictional information is encoded in the deformation of our skin. The findings are useful for designing bio-inspired tactile sensors for robotics or prosthetics and for improving haptic human-machine interactions.