基于无源射频标签传感的超低频振动信号新型测试方法。

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Litai Lou, Jianhua Yang, Kaixuan Ma, Tao Gong, Zhongqiu Wang, Baofeng Li
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引用次数: 0

摘要

超低频振动在许多关键研究领域都很普遍。然而,对于低于 1 Hz 的超低频振动信号,目前还缺乏一种经济有效的测量方法。利用射频识别(RFID)传感方法,提出了一种基于无源射频标签阶段的新型超低频振动信号测试方法。通过对超低频率振动信号进行振动检测,验证了所提方法在不同频率下的有效性,同时全面考虑了测量范围、精度、距离和遮挡效应等因素。结果表明,该方法可精确测量低至 0.01 Hz 的超低频振动信号,所有测量结果的平均相对误差仅小于 1.5%,且误差随检测频率的增加而减小。在测量 1 赫兹的振动信号时,平均相对误差小于 1%。此外,测量精度不受距离或遮挡的影响。此外,还进行了灵敏度和稳定性测试。连续 8 小时的监测表明,该方法具有出色的测量稳定性。最后,还与非接触式超低频测量方法中常用的激光位移传感器进行了性能比较。结果表明,射频识别传感方法可以检测到更低的振动频率,具有更大的振幅测量范围和更好的环境适应性。总之,对于超低频振动,这种方法具有精度高、无源非接触操作、非视线路径监测、经济实惠和方便快捷等优点。这些特性使其适合广泛应用于各种需要超低频振动测试的工程场景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A novel testing method for ultra-low-frequency vibration signal based on passive radio frequency tag sensing.

Ultra-low-frequency vibration is prevalent in many critical research fields. Nevertheless, for ultra-low-frequency vibration signals below 1 Hz, there is currently a lack of a cost-effective and efficient measurement method. A new ultra-low-frequency vibration signal testing method based on the passive radio frequency tag phase is proposed using the Radio Frequency Identification (RFID) sensing method. By employing vibration detection on ultra-low-frequency vibration signals, the effectiveness of the proposed approach across different frequencies is validated while thoroughly considering factors such as measurement range, precision, distance, and occlusion effects. The results indicate that this method can accurately measure ultra-low frequency vibration signals as low as 0.01 Hz, with an average relative error of only less than 1.5% for all measurement results, and the error decreases with increasing detection frequency. For the measurement of a 1 Hz vibration signal, the average relative error is less than 1%. In addition, the measurement accuracy remains unaffected by distance or occlusion. Sensitivity and stability tests are also conducted. Continuous monitoring for 8 hours demonstrates the excellent measurement stability of the proposed method. Finally, a performance comparison has been made with laser displacement sensors commonly used in non-contact ultra-low-frequency measurement methods. The results show that the RFID sensing method can detect lower vibration frequencies and has a larger amplitude measurement range and better environmental adaptability. Overall, for ultra-low-frequency vibration, this method offers advantages such as high precision, passive non-contact operation, non-line-of-sight path monitoring, affordability, and convenience. These attributes render it suitable for extensive application in various engineering scenarios requiring ultra-low-frequency vibration testing.

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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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