Scholarlink

<p>Pipelines are important for transporting petroleum and natural gas. However, corrosion is a common issue that can lead to leaks, causing environmental pollution and even triggering serious incidents. Therefore, monitoring pipeline corrosion is highly important. The reduction in pipeline wall thickness directly reflects the corrosion degree. Based on this principle, a novel method is proposed for monitoring the internal wall thickness of pipeline. First, the magnetic force relationship between a permanent magnet and ferromagnetic materials is derived using equivalent magnetizing current models and the Biot‒Savart law. The results indicate that the magnitude of the magnetic force is linearly related to the thickness of the ferromagnetic material. Based on this result and the sensing principles of fiber Bragg grating (FBG), an adjustable-precision sensor for measuring the wall thickness of pipeline is developed. Finally, experiments are conducted to verify the performance of this sensor. The experimental results show that the sensor can accurately measure the thickness of steel, showing its potential for engineering applications.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Development of a pipe wall thickness measurement sensor based on FBG and permanent magnet technology

  • 期刊论文

  • 发表日期：

    2025年2月28日

查看全文
  • Tao Jiang,
  • Haodian Zhu,
  • Jiajian Wang,
  • Dongsheng Li,
  • Yi Shi

摘要

Pipelines are important for transporting petroleum and natural gas. However, corrosion is a common issue that can lead to leaks, causing environmental pollution and even triggering serious incidents. Therefore, monitoring pipeline corrosion is highly important. The reduction in pipeline wall thickness directly reflects the corrosion degree. Based on this principle, a novel method is proposed for monitoring the internal wall thickness of pipeline. First, the magnetic force relationship between a permanent magnet and ferromagnetic materials is derived using equivalent magnetizing current models and the Biot‒Savart law. The results indicate that the magnitude of the magnetic force is linearly related to the thickness of the ferromagnetic material. Based on this result and the sensing principles of fiber Bragg grating (FBG), an adjustable-precision sensor for measuring the wall thickness of pipeline is developed. Finally, experiments are conducted to verify the performance of this sensor. The experimental results show that the sensor can accurately measure the thickness of steel, showing its potential for engineering applications.