Fiber optic wrist pulse sensor for health monitoring in the home

Jingke Li; Chuanyi Tao; Na Li; Junhua Cheng

doi:10.1117/12.2585284

2 December 2020 Fiber optic wrist pulse sensor for health monitoring in the home

Jingke Li, Chuanyi Tao, Na Li, Junhua Cheng

Proceedings Volume 11717, 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics; 117170U (2020) https://doi.org/10.1117/12.2585284
Event: 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics, 2020, Shanghai, China

Abstract

Pulse pressure measurement, as one of the major home health monitoring technologies, is of great significance for the assessment of blood pressure and recognition of lung cancer. Here we propose and experimentally demonstrate a noninvasive optical fiber pulse sensor, which comprises a simple structure in which a section of thin-core fiber is spliced into another single-mode fiber. Responses of fiber pulse sensor to the simulated pulsations are tested by using a piezoelectric transducer. And a silicone rubber device is designed to ensure that weak pulse signals are detected. The sensors with an inserted thin-core fiber length of 2-3 mm can display remarkable response to human pulse pressure. The signal waveforms detected are almost unaffected by the subject’s movement. It also possesses the advantages of high sensitivity, simple signal acquisition and processing, easy fabrication, and thus is an ideal candidate for replacing traditional electrical sensor.

Citation Download Citation

Jingke Li, Chuanyi Tao, Na Li, and Junhua Cheng "Fiber optic wrist pulse sensor for health monitoring in the home", Proc. SPIE 11717, 24th National Laser Conference & Fifteenth National Conference on Laser Technology and Optoelectronics, 117170U (2 December 2020); https://doi.org/10.1117/12.2585284

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