A wearable FBG pulse-wave sensor based on multilayers compound fabrics structure

Liqing Wang; Lu Yang; Cheng Zhang; Changyun Miao; Kun Yang

doi:10.1117/12.2322610

23 October 2018 A wearable FBG pulse-wave sensor based on multilayers compound fabrics structure

Liqing Wang, Lu Yang, Cheng Zhang, Changyun Miao, Kun Yang

Proceedings Volume 10821, Advanced Sensor Systems and Applications VIII; 1082112 (2018) https://doi.org/10.1117/12.2322610
Event: SPIE/COS Photonics Asia, 2018, Beijing, China

Abstract

A fiber Bragg grating (FBG) textile-based pulse wave sensor is proposed and demonstrated based on multi-layers compound fabrics structure which can convert the fabric tension to the pressure of FBG sensing unit needed by pulse measurement and improve its sensitivity. On the basis of material mechanics theory, the sensing model is established and the theoretical formulas are deduced. A prototype of cuff-type FBG textile-based pulse sensor is achieved by the knitted way of compound fabrics. The test results show that the sensor can effectively obtain pulse wave which has higher signal-to-noise ratio and contains more detail features than the photoplethysmography (PPG) sensor. This sensor has potential applications in smart textile and a good practical prospect for the wearable human pulse measurement during the magnetic resonance imaging (MRI) scan.

Citation Download Citation

Liqing Wang, Lu Yang, Cheng Zhang, Changyun Miao, and Kun Yang "A wearable FBG pulse-wave sensor based on multilayers compound fabrics structure", Proc. SPIE 10821, Advanced Sensor Systems and Applications VIII, 1082112 (23 October 2018); https://doi.org/10.1117/12.2322610

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KEYWORDS

Fiber Bragg gratings

Sensors

Ferroelectric polymers

Magnetic resonance imaging

Fiber optics sensors

Heart

Signal detection

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