Hydrogen sensing based on polymer modified quartz tuning fork

IF 3.4 3区物理与天体物理 Q2 INSTRUMENTS & INSTRUMENTATION

Infrared Physics & Technology Pub Date : 2025-08-28 DOI:10.1016/j.infrared.2025.106120

Chuanning Li , Hanxu Ma , Ying He , Shunda Qiao , Yufei Ma

引用次数: 0

Abstract

Hydrogen (H₂) is widely recognized as a clean and renewable energy source, with increasing applications across various industrial sectors. In this study, we propose a H₂ sensor based on a quartz tuning fork (QTF) modified with polyvinyl alcohol (PVA). The sensing mechanism relies on the QTF’s sensitivity to changes in gas density and dynamic viscosity, which manifest as measurable shifts in resonant frequency in response to varying H₂ concentrations. The PVA modification enhances the mechanical stiffness of the QTF and increases its resonant frequency, resulting in significantly improved frequency sensitivity. Experimental results show that the frequency sensitivity of the modified QTF reaches 217 mHz/%, representing a 3.8-fold enhancement compared to the 56 mHz/% sensitivity of the unmodified QTF. This sensor offers a promising low-cost, high-sensitivity solution for H₂ detection with potential for large-scale industrial deployment.

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基于聚合物改性石英音叉的氢传感

氢（H2）作为一种清洁的可再生能源被广泛认可，在各个工业领域的应用越来越广泛。在这项研究中，我们提出了一种基于聚乙烯醇（PVA）改性石英音叉（QTF）的氢气传感器。传感机制依赖于QTF对气体密度和动态粘度变化的敏感性，这表现为响应不同H2浓度时共振频率的可测量位移。PVA改性提高了QTF的机械刚度，提高了其谐振频率，从而显著提高了频率灵敏度。实验结果表明，改进后的QTF的频率灵敏度达到217 mHz/%，比未改进的QTF的56 mHz/%提高了3.8倍。该传感器为氢气检测提供了一种低成本、高灵敏度的解决方案，具有大规模工业部署的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Infrared Physics & Technology 物理-光学

CiteScore

5.70

自引率

12.10%

发文量

400

审稿时长

67 days

期刊介绍： The Journal covers the entire field of infrared physics and technology: theory, experiment, application, devices and instrumentation. Infrared'' is defined as covering the near, mid and far infrared (terahertz) regions from 0.75um (750nm) to 1mm (300GHz.) Submissions in the 300GHz to 100GHz region may be accepted at the editors discretion if their content is relevant to shorter wavelengths. Submissions must be primarily concerned with and directly relevant to this spectral region. Its core topics can be summarized as the generation, propagation and detection, of infrared radiation; the associated optics, materials and devices; and its use in all fields of science, industry, engineering and medicine. Infrared techniques occur in many different fields, notably spectroscopy and interferometry; material characterization and processing; atmospheric physics, astronomy and space research. Scientific aspects include lasers, quantum optics, quantum electronics, image processing and semiconductor physics. Some important applications are medical diagnostics and treatment, industrial inspection and environmental monitoring.