Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Advances in Non-Interference Sensing for Wearable Sensors: Selectively Detecting Multi-Signals from Pressure, Strain, and Temperature

  • Byung Ku Jung (Department of Materials Science and Engineering, Korea University) ;
  • Yoonji Yang (Department of Materials Science and Engineering, Korea University) ;
  • Soong Ju Oh (Department of Materials Science and Engineering, Korea University)
  • Received : 2023.11.03
  • Accepted : 2023.11.28
  • Published : 2023.11.30
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Abstract

Wearable sensors designed for strain, pressure, and temperature measurements are essential for monitoring human movements, health status, physiological data, and responses to external stimuli. Notably, recent research has led to the development of high-performance wearable sensors using innovative materials and device structures that exhibit ultra-high sensitivity compared with their commercial counterparts. However, the quest for accurate sensing has identified a critical challenge. Specifically, the mechanical flexibility of the substrates in wearable sensors can introduce interference signals, particularly when subjected to varying external stimuli and environmental conditions, potentially resulting in signal crosstalk and compromised data fidelity. Consequently, the pursuit of non-interference sensing technology is pivotal for enabling independent measurements of concurrent input signals related to strain, pressure, and temperature, ensuring precise signal acquisition. In this comprehensive review, we present an overview of the recent advances in noninterference sensing strategies. We explore various fabrication methods for sensing strain, pressure, and temperature, emphasizing the use of hybrid composite materials with distinct mechanical properties. This review contributes to the understanding of critical developments in wearable sensor technology that are vital for their ongoing application and evolution in numerous fields.

Keywords

Acknowledgement

B. K. J. and Y. Y. contributed equally to this work. This research was supported by (2022R1A2C4001517) Basic Science Research Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Science, ICT, and Future Planning.

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