Abstract
With the rapid development of society in recent decades, the wearable sensor has attracted attention for motion-based health care and artificial applications. However, there are still many limitations to applying them in real life, particularly the inconvenience that comes from their large size and non-flexible systems. To solve these problems, flexible small-sized sensors that use body motion as a stimulus are studied to directly collect more accurate and diverse signals. In particular, tactile sensors are applied directly on the skin and provide input signals of motion change for the flexible reading device. This review provides information about different types of tactile sensors and their working mechanisms that are piezoresistive, piezocapacitive, piezoelectric, and triboelectric. Moreover, this review presents not only the applications of the tactile sensor in motion sensing and health care monitoring, but also their contributions in the field of artificial intelligence in recent years. Other applications, such as human behavior studies, are also suggested.
Highlights
Tactile sensation, one of the five senses defined by Aristotle, is caused by the excitement of a certain sensitivity in the skin [1,2]
With the recent further development of technology, tactile sensors are being studied for their application in medical devices and artificial intelligence beyond conventional touch screens or motion sensing applications [26,27]
Years, studies the application of new comTo enhance the sensitivity ofin therecent piezoresistive effect,ofPang et al presented a layered posite materials between conductive materials and insulating matrices have been strain-gauge sensor based on nanoscale mechanical interlocking between two arrays of conducted
Summary
One of the five senses defined by Aristotle, is caused by the excitement of a certain sensitivity in the skin [1,2]. The signal shows the relationship between the stimulus and the device, and the properties of the stimulus In detail, it provides data on the magnitude, shape, position, and distribution of forces derived from the tactile sense. Tactile sensors that are capable of detecting various external stimuli at the same time by combining devices having different signal transducer systems are being developed [19]. With the recent further development of technology, tactile sensors are being studied for their application in medical devices and artificial intelligence beyond conventional touch screens or motion sensing applications [26,27]. Specific applications in the fields of motion sensors, health care monitoring, and artificial intelligence, which are promising applications of tactile sensor devices, are introduced
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