A Micro-Pressure Sensing Method Based on the Micropatterned Electrodes Filled with the Microspheres
Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Taiyuan 030051, Shanxi, China
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Materials 2017, 10(12), 1439; https://doi.org/10.3390/ma10121439
Received: 25 October 2017 / Revised: 13 December 2017 / Accepted: 13 December 2017 / Published: 18 December 2017
As the core component of the sense of touch, flexible pressure sensors are critical to synchronized interactions with the surrounding environment. Here, we introduce a new type of flexible capacitive pressure sensor based on a template of electrodes, with a one-dimensional pyramid micropatterned structure on a Polydimethylsiloxane (PDMS) substrate and a dielectric layer of polystyrene (PS) microspheres. The proposed sensor exhibits a stable and high sensing sensitivity of 0.741 kPa−1 to capacitance, good durability over 1000 cycles, and fast response time (<150 ms). Our flexible capacitive sensor responds not only to pressure but also to bending forces. Our device can be used to monitor the location and distribution of weight pressure. The proposed capacitive pressure sensor has itself been applied foreground in lots of aspects, such as electronic skins, wearable robotics, and biomedical devices.
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MDPI and ACS Style
Cui, J.; Zhang, B.; Duan, J.; Guo, H.; Tang, J. A Micro-Pressure Sensing Method Based on the Micropatterned Electrodes Filled with the Microspheres. Materials 2017, 10, 1439.
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