基于光纤激光多普勒的冲击定位方法

IF 2.7 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Optical Fiber Technology Pub Date : 2025-05-13 DOI:10.1016/j.yofte.2025.104250

Yuxiang Luo , Shengjie Jiang , Chao Duan , Tao Tan , Yanxi Wu , Qingzhi Zhang , Ye Tian , Jianzhong Zhang

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引用次数: 0

摘要

采用光纤激光多普勒振动（LDV）技术解决了接触定位方法中传感器脱离和与被测物体共振的问题。构建四通道光纤LDV冲击定位系统，测量冲击面振动，采用阈值法提取起始时间，采用Chan-Taylor算法计算冲击定位。考虑系统噪声、冲击速度、冲击位置等因素，通过仿真和实验对系统的精度进行了分析。结果表明，噪声的恶化和冲击速度的增加都会导致定位误差的增大。低速（2.5 m/s）和高速（100 m/s）冲击下，系统定位误差小于2 cm。该技术具有较高的定位精度和抗共振特性，在航空等领域具有巨大的应用潜力，可以保证结构的健康和安全。

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A method for impact localization based on fiber laser Doppler

The fiber laser Doppler vibration (LDV) technology was used to address the issues of sensor detachment and resonance with the object being tested in contact localization methods. A four-channel optical fiber LDV impact localization system is constructing to measure the vibration of the impact surface and employs the threshold method to extract the starting time while utilizing the Chan-Taylor algorithm to calculate the impact localization. The accuracy of the system was analyzed through the simulation and experiment, taking into account factors such as system noise, impact velocity, and impact location. It was found that both the deterioration of noise and the increase of impact speed lead to higher localization error. The localization error of the system under low speed (2.5 m/s) and high speed (100 m/s) impacts is less than 2 cm. This technology has high localization accuracy and anti-resonance characteristics, and has huge potential applications in some fields such as aviation to ensure structural health and safety.

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来源期刊

Optical Fiber Technology 工程技术-电信学

CiteScore

4.80

自引率

11.10%

发文量

327

审稿时长

63 days

期刊介绍： Innovations in optical fiber technology are revolutionizing world communications. Newly developed fiber amplifiers allow for direct transmission of high-speed signals over transcontinental distances without the need for electronic regeneration. Optical fibers find new applications in data processing. The impact of fiber materials, devices, and systems on communications in the coming decades will create an abundance of primary literature and the need for up-to-date reviews. Optical Fiber Technology: Materials, Devices, and Systems is a new cutting-edge journal designed to fill a need in this rapidly evolving field for speedy publication of regular length papers. Both theoretical and experimental papers on fiber materials, devices, and system performance evaluation and measurements are eligible, with emphasis on practical applications.