Highly sensitive fiber-optic chemical pH sensor based on surface modification of optical fiber with ZnCdSe/ZnS quantum dots

Zhang, Zongjie; Zhang, Hongxia; Hou, Lili; Jia, Dagong; Yao, Kaixin; Meng, Qingyang; Qu, Jiayi; Yan, Bing; Luan, Qingxin; Liu, Tiegen

doi:10.1016/j.aca.2024.342281

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Cited by 3 publications

References 39 publications

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HMS optical fiber gas sensor based on double-layer WO3@CQDs porous film modified cladding for detecting 2-butanone gas at room temperature

Wang,

Li,

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et al. 2024

Chemical Engineering Journal

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HMS optical fiber gas sensor based on double-layer WO3@CQDs porous film modified cladding for detecting 2-butanone gas at room temperature

Wang,

Li,

Yang

et al. 2024

Chemical Engineering Journal

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Dual parametric simultaneous measurement of pH and temperature based on optical fiber interference and silanized pH-responsive hydrogel

Zhang,

Liu

et al. 2025

Measurement

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Flexible fiber optic sensor for dual parameter perception of liquid level and temperature

Qin,

Li,

Fan

et al. 2024

Preprint

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In this paper, a flexible optical fiber for two-parameter measurement of liquid level and temperature is presented. The flexible fiber is composed of polyurethane membrane and spherical microfiber few mode fiber (FMF) . It has excellent mechanical properties and thermal stability. By converting the change of liquid level into the change of static liquid pressure of polyurethane diaphragm, the performance of the sensor is analyzed by finite element method (FEM) and beam propagation method (BPM). The sensitivity of the liquid level sensor is 0.54534 nm/mm, and the sensitivity of the liquid level sensor is increased about 5 times. In order to eliminate the temperature interference, the temperature decoupling scheme is studied in this paper. The problem of cross sensitivity is solved by discussing the interference of temperature on double wave peaks. It has a broad prospect in the field of fuel level monitoring and control.

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Highly sensitive fiber-optic chemical pH sensor based on surface modification of optical fiber with ZnCdSe/ZnS quantum dots

Cited by 3 publications

References 39 publications

HMS optical fiber gas sensor based on double-layer WO3@CQDs porous film modified cladding for detecting 2-butanone gas at room temperature

HMS optical fiber gas sensor based on double-layer WO3@CQDs porous film modified cladding for detecting 2-butanone gas at room temperature

Dual parametric simultaneous measurement of pH and temperature based on optical fiber interference and silanized pH-responsive hydrogel

Flexible fiber optic sensor for dual parameter perception of liquid level and temperature

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