A Flexible Strain Sensor Based on Embedded Ionic Liquid

Overview

Journal Sensors (Basel)

Publisher MDPI

Specialty Biotechnology

Date 2021 Sep 10

PMID 34502651

Citations 2

Authors

Huiyang Zhang

Andrew Lowe

Anubha Kalra

Yang Yu

Affiliations

Soon will be listed here.

Abstract

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.

Citing Articles

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PMID: 37476478 PMC: 10354247. DOI: 10.3389/fbioe.2023.1188996.

Decoupling Transmission and Transduction for Improved Durability of Highly Stretchable, Soft Strain Sensing: Applications in Human Health Monitoring.

Kight A, Pirozzi I, Liang X, McElhinney D, Han A, Dual S Sensors (Basel). 2023; 23(4).

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