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A Flexible Strain Sensor Based on Embedded Ionic Liquid
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DOI：10.3390/s21175760.png)
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摘要
En 中文
We present a simple-structured strain sensor based on a low-cost ionic liquid. The ionic liquid was made of sodium chloride/propylene glycol solution and was embedded in a linear microfluidic channel fabricated using Ecoflex. The proposed sensor is capable of measuring strain up to 100% with excellent repeatability. The highest gauge factor is obtained as 6.19 under direct current excitation and 3.40 under alternating current excitation at 1 kHz. The sensor shows negligible hysteresis and overshoot, and survived 10,000 rapid stretch-release cycles of a 100% peak strain with a minor deviation in the response signal. The sensor can be mounted to different locations on the human body and suits a variety of applications in the field of motion detection, human-machine interface and healthcare monitoring.
Keyword:
strain sensor
flexible sensor
motion detection
wearable device
ionic liquid
fluid channel
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IF:
3.5
论文数:
7.2W
被引数:
20.9W
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