The Design and Performance of Tactile/Proximity Sensors Made of Carbon Microcoils

Chen, X.; Yang, Shihao; Sawada, Noriyuki; Motojima, Seiji

doi:10.1007/978-3-540-79590-2_17

Cited by 6 publications

(4 citation statements)

References 10 publications

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“…Chen et al [60] extended this research by investigating the effects of composite thickness on impedance. This was done by using 10 × 10 mm 2 composites of 7 wt% CMC uniformly dispersed in soft polysilicone with thicknesses of 3, 5, and 7 mm.…”

Section: Tactile Sensormentioning

confidence: 98%

“…This was done by using 10 × 10 mm 2 composites of 7 wt% CMC uniformly dispersed in soft polysilicone with thicknesses of 3, 5, and 7 mm. Impedance increased with applied load; and thickness influenced sensitivity and the maximum range of applied load [60]. Katsuno et al [53] reported the impedance and phase angle changes of 5 wt% double helical CMC/silicone rubber composite (6 × 6 × 2 mm 3 ) under different loads.…”

Section: Tactile Sensormentioning

confidence: 99%

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Growth and Properties of Carbon Microcoils and Nanocoils

2014

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Abstract:Various types of coiled carbon filaments have been synthesized using chemical vapor deposition and other methods. These carbon filaments exhibit unique electrical and mechanical properties due to their versatile shapes and structures. To form coiled shapes, different types of catalyst compositions and reactive gases have been explored. Generally, coiled carbon filaments are classified by coil diameter and shape (e.g., microcoil and nanocoil). In this review, coiled carbon filaments are classified into three growth mechanism categories: (1) bidirectional double helical growth; (2) bidirectional twisted growth; and (3) tip single helical or twisted growth. Next, their synthesis methods and hypothetical growth mechanisms are discussed. Then, their electrical and mechanical properties are listed. Finally, potential applications and uses of coiled carbon filament are mentioned.

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Section: Tactile Sensormentioning

confidence: 98%

Section: Tactile Sensormentioning

confidence: 99%

Growth and Properties of Carbon Microcoils and Nanocoils

2014

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“…HCFs have shown excellent electron field emission characteristics [ 27 , 28 , 29 , 30 ] and wide band absorption of electromagnetic waves [ 31 , 32 , 33 , 34 , 35 ]. Because of their unique morphology and properties, HCFs have been proposed for potential applications in polymer additives [ 36 , 37 , 38 ], supercapacitor electrodes [ 39 , 40 ], catalysts [ 41 ], catalyst supports [ 42 , 43 ], hydrogen adsorption [ 39 , 44 , 45 ], generator or detector of magnetic field [ 46 ], an electrical inductors [ 21 ], micro/nanospring [ 47 ], sensors [ 21 , 48 , 49 ], nanodevices [ 50 ], etc .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Helical Carbon Fibers and Related Materials: A Review on the Past and Recent Developments

Raghubanshi

Dikio

2015

Nanomaterials

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Helical carbon fibers (HCFs) have been widely studied due to their unique helical morphology and superior properties, which make them efficient materials for several potential applications. This review summarizes the past and current advancement on the synthesis of HCFs. The review focuses and discusses synthesis strategies and effect of experimental parameters on the growth of HCFs. The effect of preparation method of catalyst, catalyst nature, catalyst composition, catalyst size, catalyst initial and final shape, reaction temperature, reaction time, carbon source, impurities, and electromagnetic field on the growth of HCFs is reviewed. We also discuss the growth mechanism for HCFs and the synthesis of HCFs related materials. Finally, we conclude with a brief summary and an outlook on the challenges and future prospects of HCFs.

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“…weight and size) for integration into a wider range of robotic systems including light-weight flying robots and compact manipulators for operation in confined spaces. To date, prominent examples of such sensing systems include capacitive tactile proximity sensors based on silver nanowires and polymer film [35] and carbon microcoils [36]. Since, the former uses the same capacitive range for both proximity and tactile sensing, the sensor is not able to distinguish between static proximity and tactile inputs.…”

Section: Sensory-physical Design Of the Module: Seamless Measurement mentioning

confidence: 99%

Anchoring like octopus: biologically inspired soft artificial sucker

Sareh

Althoefer

et al. 2017

J. R. Soc. Interface.

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This paper presents a robotic anchoring module, a sensorised mechanism for attachment to the environment that can be integrated into robots to enable or enhance various functions such as robot mobility, remaining on location or its ability to manipulate objects. The body of the anchoring module consists of two portions with a mechanical stiffness transition from hard to soft. The hard portion is capable of containing vacuum pressure used for actuation whilst the soft portion is highly conformable to create a seal to contact surfaces. The module is integrated with a single sensory unit which exploits a fibre optic sensing principle to seamlessly measure proximity and tactile information for use in robot motion planning as well as measuring the state of firmness of its anchor. In an experiment, a variable set of physical loads representing the weights of potential robot bodies were attached to the module and its ability to maintain the anchor was quantified under constant and variable vacuum pressure signals. The experiment shows the effectiveness of the module in quantifying the state of firmness of the anchor and discriminating between different amounts of physical loads attached to it. The proposed anchoring module can enable many industrial and medical applications where attachment to environment is of crucial importance for robot control.

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The Design and Performance of Tactile/Proximity Sensors Made of Carbon Microcoils

Cited by 6 publications

References 10 publications

Growth and Properties of Carbon Microcoils and Nanocoils

Growth and Properties of Carbon Microcoils and Nanocoils

Synthesis of Helical Carbon Fibers and Related Materials: A Review on the Past and Recent Developments

Anchoring like octopus: biologically inspired soft artificial sucker

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