Abstract
A photonic sensor with radio frequency (RF) power detection for body pressure monitoring is proposed. The sensor based on two fiber Bragg gratings (FBGs) can transfer the wavelength shift to the change of RF power. The pressure can be measured by modulating and processing one single frequency RF signal. The theoretical analysis and experimental results of the photonic sensor are presented and discussed. The pressure sensitivities are acquired with 2.62×10−5 mW/kPa at 2.14 GHz, 2.46×10−5 mW/kPa at 2.21 GHz, 2.81×10−5 mW/kPa at 2.37 GHz, and 3.02×10−5 mW/kPa at 2.45 GHz, respectively. Furthermore, the pressure measurements of pressed body parts are also obtained by the sensor.
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SHI C, DUMVILLE J C, CULLUM N. Skin status for predicting pressure ulcer development: a systematic review and meta-analyses[J]. International journal of nursing studies, 2018, 87: 14–25.
LIAO Y, GAO G, MO L. Predictive accuracy of the braden Q scale in risk assessment for paediatric pressure ulcer: a meta-analysis[J]. International journal of nursing sciences, 2018, 5: 419–426.
NINBANPHOT S, NARAWONG P, THEERANUT A, et al. Development and validation of CAVE score in predicting presence of pressure ulcer in intensive care patients[J]. Heliyon, 2020, 6: e04612.
GILLARD N, LEONG-HOI A, DEPART J P, et al. Early detection of pressure ulcers: considering the reperfusion[J]. IRBM, 2023, 44: 100753.
SEN D, MCNEILL J, MENDELSON Y, et al. A new vision for preventing pressure ulcers: wearable wireless devices could help solve a common and serious problem[J]. IEEE pulse, 2018, 9(6): 28–31.
WANG L, JONES D, CHAPMAN G J, et al. A review of wearable sensor systems to monitor plantar loading in the assessment of diabetic foot ulcers[J]. IEEE transactions on biomedical engineering, 2020, 67(7): 1989–2004.
WU M, ZHI C, MENG J, et al. 3D spacer fabric structure for the prevention and care of pressure ulcers[J]. IEEE access, 2020, 8: 213512–213521.
ZHANG Z, POSLAD S. Improved use of foot force sensors and mobile phone GPS for mobility activity recognition[J]. IEEE sensors journal, 2014, 14(12): 4340–4347.
WANG D H, BLENMAN N, MAUNDER S, et al. An optical fiber Bragg grating force sensor for monitoring sub-bandage pressure during compression therapy[J]. Optics express, 2013, 21(17): 19799–19807.
TAVARES C, DOMINGUES M F, FRIZERA-NETO A, et al. Gait shear and plantar pressure monitoring: a non-invasive OFS based solution for e-health architectures[J]. Sensors, 2018, 18: 1334.
DOMINGUES M F, ALBERTO N, LEITÃO C S J, et al. Insole optical fiber sensor architecture for remote gait analysis-an e-health solution[J]. IEEE internet of things journal, 2019, 6(1): 207–213.
YAO J. Microwave photonic sensors[J]. Journal of lightwave technology, 2021, 39(12): 3626–3637.
YAO J. Microwave photonic[J]. Journal of lightwave technology, 2009, 27(3): 314–335.
WEI T, HUNG J, LAN X, et al. Optical fiber sensor based on a radio frequency Mach-Zehnder interferometer[J]. Optics letters, 2012, 37(4): 647–649.
SHE Y, WANG Y, SHI J, et al. Novel interrogation method for fully distributed LCFBG sensor based on microwave photonic filtering[J]. IEEE photonics technology letters, 2022, 34(23): 1304–1307.
WANG Y, WANG M, XIA W, et al. High-resolution fiber Bragg grating based transverse load sensor using microwave photonics filtering technique[J]. Optics express, 2016, 24(16): 17960–17967.
LINDER-GANZ E, ENGELBERG S, SCHEINOWITZ M, et al. Pressure-time cell death threshold for albino rat skeletal muscles as related to pressure sore biomechanics[J]. Journal of biomechanics, 2006, 39: 2725–2732.
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This work has been supported by the Key R&D Project of Science and Technology Department of Sichuan Province (No.2023YFS0122), and the Health Research Project for Cadres of Sichuan Province (No.2022-204).
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Zhao, Z., Chen, J., Yang, J. et al. Photonic sensor with radio frequency power detection for body pressure monitoring. Optoelectron. Lett. 19, 752–755 (2023). https://doi.org/10.1007/s11801-023-3110-1
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DOI: https://doi.org/10.1007/s11801-023-3110-1