Self‐Powered Tactile Sensor Array Systems Based on the Triboelectric Effect

Tao, Juan; Bao, Rongrong; Wang, Xiandi; Peng, Yiyao; Li, Jing; Fu, Sheng-Quan; Pan, Caofeng; Wang, Zhong Lin

doi:10.1002/adfm.201806379

Cited by 146 publications

(92 citation statements)

References 131 publications

(203 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The triboelectric‐type mechanical sensor is a kind of novel self‐powered sensor that converts a mechanical signal into an electrical signal through triboelectric effects. It has been intensively studied in recent years . As early as 2600 years ago, the triboelectric effect, known as contact electrification, has been discovered.…”

Section: Skin‐inspired Mechanical Sensorsmentioning

confidence: 99%

See 1 more Smart Citation

Physical sensors for skin‐inspired electronics

Zhang

Wang

et al. 2019

InfoMat

198

143

View full text Add to dashboard Cite

Skin, the largest organ in the human body, is sensitive to external stimuli.In recent years, an increasing number of skin-inspired electronics, including wearable electronics, implantable electronics, and electronic skin, have been developed because of their broad applications in healthcare and robotics.Physical sensors are one of the key building blocks of skin-inspired electronics. Typical physical sensors include mechanical sensors, temperature sensors, humidity sensors, electrophysiological sensors, and so on. In this review, we systematically review the latest advances of skin-inspired mechanical sensors, temperature sensors, and humidity sensors. The working mechanisms, key materials, device structures, and performance of various physical sensors are summarized and discussed in detail. Their applications in health monitoring, human disease diagnosis and treatment, and intelligent robots are reviewed. In addition, several novel properties of skin-inspired physical sensors such as versatility, self-healability, and implantability are introduced. Finally, the existing challenges and future perspectives of physical sensors for practical applications are discussed and proposed. K E Y W O R D Selectronics skin, flexible electronics, humidity sensors, mechanical sensors, temperature sensors, wearable sensors

show abstract

Section: Skin‐inspired Mechanical Sensorsmentioning

confidence: 99%

“…As early as 2600 years ago, the triboelectric effect, known as contact electrification, has been discovered. Charge transfer occurs during frictional contact between different materials (Figure A) . The standard for measuring charge transfer is called triboelectric order .…”

Section: Skin‐inspired Mechanical Sensorsmentioning

confidence: 99%

Physical sensors for skin‐inspired electronics

Zhang

Wang

et al. 2019

InfoMat

198

143

View full text Add to dashboard Cite

show abstract

“…Triboelectric pressure sensors are based on contact electrification and electrostatic induction; namely, they use mechanical rubbing between insulators to induce charges on electrodes. The electrostatic charges generated by periodic contact and separation of two insulator surfaces produce an alternating potential and current.…”

Section: Sensor Designs and Mechanismsmentioning

confidence: 99%

Flexible Pressure Sensors for Objective Assessment of Motor Disorders

Amit

Chukoskie

Skalsky

et al. 2019

Adv Funct Materials

View full text Add to dashboard Cite

Monitoring body motion is relevant to motor control disorders as well as assessment of fine motor skills in child development. Furthermore, motion tracking is necessary for rehabilitation monitoring and injury prevention and benefits both sick and healthy individuals. Flexible pressure sensors based on resistors, capacitors, inductors, or transistors are reviewed in the context of healthcare measurements, ranging from physiological signals to body movement characteristics such as grip and gait. To demonstrate the use of flexible pressure sensors for motor assessment, a touch sensing glove that evaluates fine motor skills in autism research is developed. The results show that autistic children perform fewer taps per minute compared to typically developing children, with larger variations in tap durations. In a second example, a force and motion sensing glove is developed to assess spasticity, a neuromuscular disorder that causes muscle stiffness/resistance and jerky movement. Analyses of force versus velocity show movement-dependent muscle resistance in a patient with spasticity. Through these flexible sensor systems, the shift from subjective scores to objective measurement will promote better diagnosis and dramatically improve the accuracy in tracking patient response to therapy.patients doing certain movements, and then clinicians rank each patient's level according to qualitative descriptions in benchmark classification scales. [12,13] The subjective scores can be inconsistent between raters and do not capture finelevel changes in a patient's progress in response to therapy. Therefore, there is a critical need to tackle the issue of imprecise assessment of motor disorders.With recent advances in flexible sensors and innovations in tactile sensing, [14][15][16][17][18][19] we have new low-cost technologies that are prime to facilitate quantitative evaluation of motor control. This progress report presents current developments in wearable sensor systems applicable to motor disorders, so that consistent, objective metrics become available to accurately track whether a treatment effectively relieves symptoms. The wearable sensors are not limited to placement on patients but can also be worn by clinicians or caregivers to assist them in taking measurements during patient interactions. [20,21] The point-of-care sensor systems will allow frequent monitoring, which is highly desirable to offer a better understanding of the patient's short and long-term response to therapies, to tailor treatment and improve outcome and quality of life for patients.Other reviews [14][15][16][17][18][19] have already extensively covered the flexible materials and devices used in tracking vital signs and electronic skin applications. In light of that, this progress report focuses on the applications in monitoring motor skills, in particular to implement pressure sensor designs for wearable systems with diverse form factors, for instance, gloves, [20,22,23] epidermal tags tags, [24,25] and shoe insoles. [26,27] We will discuss the mechanis...

show abstract

“…Recently, benefited from the development of material science and manufacturing, many flexible tactile sensors have been realized based on different transduction mechanisms including capacitance, piezoelectricity, resistance, and triboelectricity . To increase the sensitivity of the sensor, microstructure have been introduced in many researches, such as pyramid, hemispheres, and micropillar .…”

Section: Introductionmentioning

confidence: 99%

High‐Performance Flexible Tactile Sensor Enabling Intelligent Haptic Perception for a Soft Prosthetic Hand

Liang

Cheng

Zhao

et al. 2019

Adv Materials Technologies

View full text Add to dashboard Cite

Compared to the traditional motor‐driven prosthetic hand, a soft prosthetic hand (SPD) has intrisic advantages such as kinematics dexterity and friendly external interaction. In order for an SPD to realize the function of a real hand, the integration of flexible high‐performance tactile sensors is essential. Current research on flexible tactile sensors is mainly focused on increasing sensitivity, but ignores other issues, such as the complexity of arraying and compatibility with soft actuators. A high‐performance flexible force sensor enabling intelligent tactile perception for an SPD is reported. With the aid of reasonable arrangement of functional material and effective 3D structure design, the force sensor exhibits good linearity (R2 = 0.982), accuracy and repeatability, very low hysteresis, fast dynamical response (<1 ms), high stability (30000 loading–unloading cycles), stable performance under high frequency (>50 Hz), and can easily be arrayed and integrated with an SPD. With such a sensor mounted on its surface, an SPD achieves various complicated tasks in the same manner as a real hand, including feeling the softness of objects and imitating the process of traditional Chinese medicine pulse diagnosis to monitor a pulse wave in the radial artery. Finally, through use of a force‐sensor array, an SPD provides real‐time spatial distribution of pressure during the grabbing of objects.

show abstract

Self‐Powered Tactile Sensor Array Systems Based on the Triboelectric Effect

Cited by 146 publications

References 131 publications

Physical sensors for skin‐inspired electronics

Physical sensors for skin‐inspired electronics

Flexible Pressure Sensors for Objective Assessment of Motor Disorders

High‐Performance Flexible Tactile Sensor Enabling Intelligent Haptic Perception for a Soft Prosthetic Hand

Contact Info

Product

Resources

About