Piezoelectric Tactile Sensors

Dahiya, Ravinder

doi:10.1002/047134608x.w8243

Cited by 6 publications

(2 citation statements)

References 52 publications

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“…The lack of bendability leads to underutilization of many novel schemes. This was the case for POSFET (Piezoelectric Oxide Semiconductor Field Effect Transistor) tactile sensing chips, which we developed in past [21][22][23][24][25][26]. Lack of conformability had been one drawback of otherwise sensitive POSFET chips in terms of their effective usage in applications such as robotic skin.…”

Section: Ultra-thin Flexible Chipsmentioning

confidence: 99%

Large area electronic skin

Dahiya

2016

2016 Ieee Sensors

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Abstract-Technological advances have enabled various approaches for developing artificial organs such as bionic eyes, artificial ears, and lungs etc. Recently electronics (e-skin) or tactile skin has attracted increasing attention for its potential to detect subtle pressure changes, which may open up applications including real-time health monitoring, minimally invasive surgery, and prosthetics. The development of e-skin is challenging as, unlike other artificial organs, tactile skin has large number of different types of sensors, which are distributed over large areas and generate large amount of data. On top of this, the attributes such as softness, stretchability, and bendability etc., are difficult to be achieved as today's electronics technology is meant for electronics on planar and stiff substrates such as silicon wafers. This said, many advances, pursued through "More than Moore" technology, have recently raised hope as some of these relate to flexible electronics and have been targeted towards developing e-skin. Depending on the technology and application, the scale of eskin could vary from small patch (e.g. for health monitoring) to large area skin (e.g. for robotics). This invited paper presents some of the advances in large area e-skin and flexible electronics, particularly related to robotics.

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Section: Ultra-thin Flexible Chipsmentioning

confidence: 99%

Large area electronic skin

Dahiya

2016

2016 Ieee Sensors

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“…Piezoelectric sensors [20] generate electrical charges when force is applied. They are typically highly sensitive, but rigid, and only detect dynamic forces.…”

Section: Introductionmentioning

confidence: 99%

Robust and high-performance soft inductive tactile sensors based on the Eddy-current effect

Wang

Kow

Raske

et al. 2018

Sensors and Actuators A: Physical

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G.B.), m.ghajari@imperial.ac.uk (M.G.), r.hewson@imperial.ac.uk (R.H.), A.Alazmani@leeds.ac.uk (A.A.), P.R.Culmer@leeds.ac.uk (P.C.). AbstractTactile sensors are essential for robotic systems to interact safely and effectively with the external world, they also play a vital role in some smart healthcare systems. Despite advances in areas including materials/composites, electronics and fabrication techniques, it remains challenging to develop low cost, high performance, durable, robust, soft tactile sensors for realworld applications. This paper presents the first Soft Inductive Tactile Sensor (SITS) which exploits an inductance-transducer mechanism based on the eddy-current effect. SITSs measure the inductance variation caused by changes in AC magnetic field coupling between coils and conductive films. Design methodologies for SITSs are discussed by drawing on the underlying physics and computational models, which are used to develop a range of SITS prototypes. An exemplar prototype achieves a state-of-the-art resolution of 0.82 mN with a measurement range over 15 N. Further tests demonstrate that SITSs have low hysteresis, good repeatability, wide bandwidth, and an ability to operate in harsh environments. Moreover, they can be readily fabricated in a durable form and their design is inherently extensible as highlighted by a 4x4 SITS array prototype. These outcomes show the potential of SITS systems to further advance tactile sensing solutions for integration into demanding real-world applications.

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Electronic Skin

Dahiya¹

2015

2015 XVIII AISEM Annual Conference

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Piezoelectric Tactile Sensors

Cited by 6 publications

References 52 publications

Large area electronic skin

Large area electronic skin

Robust and high-performance soft inductive tactile sensors based on the Eddy-current effect

Electronic Skin

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