Flexible wearable microfiber device for wide-range sound source localization

IF 3.7 2区工程技术 Q2 OPTICS Optics and Lasers in Engineering Pub Date : 2025-06-01 Epub Date: 2025-03-13 DOI:10.1016/j.optlaseng.2025.108947

Chunlei Jiang , Bicheng Shi , Zhicheng Cong , Cun Zhao , Siyuan Zhang , Taiji Dong , Xiangyu Cui , Yuan Liu , Weida Chen , Xu Liu , Yu Sun

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Abstract

Flexible wearable positioning devices face challenges, such as parasitic effects, unstable performance, electrical safety concerns, susceptibility to electromagnetic interference, and limited measurement range. This paper proposes a flexible wearable sound source localization sensor device based on microfiber. The device integrates two sound wave sensors into a flexible polydimethylsiloxane(PDMS) diaphragm, with the sensors positioned parallel to the substrate. A cross-correlation localization algorithm is employed for precise sound source localization. The device exhibits excellent resistance to electromagnetic interference and a broad measurement range during localization. Experimental results show effective sound wave within a frequency range of 50 Hz to 5000 Hz. In the angle range of 10° to 170°, the average error is 2.20°, with a maximum error of 4.73°. Its biocompatibility, high sensitivity, and wide detection angle offer an innovative solution for assisting individuals with special needs and advancing robotic auditory systems.

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用于大范围声源定位的柔性可穿戴微光纤装置

柔性可穿戴定位设备面临寄生效应、性能不稳定、电气安全、易受电磁干扰、测量范围有限等挑战。提出了一种基于超细纤维的柔性可穿戴声源定位传感器装置。该装置将两个声波传感器集成到一个柔性聚二甲基硅氧烷（PDMS）膜片中，传感器与基板平行放置。采用互相关定位算法对声源进行精确定位。该器件在定位过程中具有优异的抗电磁干扰性能和较宽的测量范围。实验结果表明，有效声波的频率范围为50hz ~ 5000hz。在10°~ 170°的角度范围内，平均误差为2.20°，最大误差为4.73°。它的生物相容性、高灵敏度和宽检测角度为帮助有特殊需要的个人和先进的机器人听觉系统提供了创新的解决方案。

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来源期刊

Optics and Lasers in Engineering 工程技术-光学

CiteScore

8.90

自引率

8.70%

发文量

384

审稿时长

42 days

期刊介绍： Optics and Lasers in Engineering aims at providing an international forum for the interchange of information on the development of optical techniques and laser technology in engineering. Emphasis is placed on contributions targeted at the practical use of methods and devices, the development and enhancement of solutions and new theoretical concepts for experimental methods. Optics and Lasers in Engineering reflects the main areas in which optical methods are being used and developed for an engineering environment. Manuscripts should offer clear evidence of novelty and significance. Papers focusing on parameter optimization or computational issues are not suitable. Similarly, papers focussed on an application rather than the optical method fall outside the journal''s scope. The scope of the journal is defined to include the following: -Optical Metrology- Optical Methods for 3D visualization and virtual engineering- Optical Techniques for Microsystems- Imaging, Microscopy and Adaptive Optics- Computational Imaging- Laser methods in manufacturing- Integrated optical and photonic sensors- Optics and Photonics in Life Science- Hyperspectral and spectroscopic methods- Infrared and Terahertz techniques