Polymer‐Waveguide‐Based Flexible Tactile Sensor Array for Dynamic Response

Yun, Sungryul; Park, Suntak; Park, Bongje; Kim, Young-Sung; Park, Seung Koo; Nam, Saekwang; Kyung, Ki-Uk

doi:10.1002/adma.201305850

Cited by 135 publications

(73 citation statements)

References 41 publications

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“…Optical strain sensors detect the light variations (intensity, frequency, or phase) caused by strain or pressure applied to the light transmission medium (e.g., optical fiber,28 elastic waveguide93). The most common transduction mechanism is based on light intensity measurement, and it usually comprises a light source (i.e., a light‐emitting diode), a photodetector, and a light transmission medium (Figure 5d).…”

Section: Sensing Technologies For Soft Robotsmentioning

confidence: 99%

“…Despite relatively complex electronics, the main advantage of optical sensors with respect to other technologies is to avoid electronic components and wires distributed on the sensing active area. Recently, an ultrathin, waveguide‐based optical system has been developed as a soft tactile sensor array 93. TacTip represents another type of optical sensors for soft tactile sensing by monitoring the deformation of a soft structure's skin through an embedded camera 96.…”

Section: Sensing Technologies For Soft Robotsmentioning

confidence: 99%

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Toward Perceptive Soft Robots: Progress and Challenges

2018

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In the past few years, soft robotics has rapidly become an emerging research topic, opening new possibilities for addressing real‐world tasks. Perception can enable robots to effectively explore the unknown world, and interact safely with humans and the environment. Among all extero‐ and proprioception modalities, the detection of mechanical cues is vital, as with living beings. A variety of soft sensing technologies are available today, but there is still a gap to effectively utilize them in soft robots for practical applications. Here, the developments in soft robots with mechanical sensing are summarized to provide a comprehensive understanding of the state of the art in this field. Promising sensing technologies for mechanically perceptive soft robots are described, categorized, and their pros and cons are discussed. Strategies for designing soft sensors and criteria to evaluate their performance are outlined from the perspective of soft robotic applications. Challenges and trends in developing multimodal sensors, stretchable conductive materials and electronic interfaces, modeling techniques, and data interpretation for soft robotic sensing are highlighted. The knowledge gap and promising solutions toward perceptive soft robots are discussed and analyzed to provide a perspective in this field.

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Section: Sensing Technologies For Soft Robotsmentioning

confidence: 99%

Section: Sensing Technologies For Soft Robotsmentioning

confidence: 99%

Toward Perceptive Soft Robots: Progress and Challenges

2018

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“…Optical pressure sensors, which can cause modification of the light intensity or wavelength between the light source and the terminal detectors with applied pressure, have attracted attentions for application in touch screens and visual displays 37. In wireless transduction devices, the force‐induced resonant frequency of the resonant circuit is changed due to the variation of the effective coupling capacitance.…”

Section: Transduction Mechanismsmentioning

confidence: 99%

Recent Progress in Electronic Skin

et al. 2015

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The skin is the largest organ of the human body and can sense pressure, temperature, and other complex environmental stimuli or conditions. The mimicry of human skin's sensory ability via electronics is a topic of innovative research that could find broad applications in robotics, artificial intelligence, and human–machine interfaces, all of which promote the development of electronic skin (e‐skin). To imitate tactile sensing via e‐skins, flexible and stretchable pressure sensor arrays are constructed based on different transduction mechanisms and structural designs. These arrays can map pressure with high resolution and rapid response beyond that of human perception. Multi‐modal force sensing, temperature, and humidity detection, as well as self‐healing abilities are also exploited for multi‐functional e‐skins. Other recent progress in this field includes the integration with high‐density flexible circuits for signal processing, the combination with wireless technology for convenient sensing and energy/data transfer, and the development of self‐powered e‐skins. Future opportunities lie in the fabrication of highly intelligent e‐skins that can sense and respond to variations in the external environment. The rapidly increasing innovations in this area will be important to the scientific community and to the future of human life.

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“…不同于传统静态力传感器, 力致发光传感器可以实现动态力的实时显示 [24] . 另一种基于接触电和静电感应的摩擦电传感器可以自驱动地监测触觉, 推动了无需外部能源供给的自驱动传感器向前发展 [10] .…”

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