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相关概念视频

Temperature Measurement Sites01:14

Temperature Measurement Sites

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A thermometer measures body temperature. The common sites for measuring body temperature are the oral cavity, axillary region, temporal artery, and skin surface, such as the forehead, abdomen, and axilla. True core body temperature is assessed in the rectum, tympanic membrane, pulmonary artery, esophagus, and urinary bladder.
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
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相关实验视频

Updated: May 5, 2026

Ultrasound Velocity Measurement in a Liquid Metal Electrode
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精确的超声波厚度测量任意时间变量热谱.

Rajendra P Palanisamy1, Do-Kyung Pyun1, Alp T Findikoglu1

  • 1Materials Physics and Applications (MPA), Los Alamos National Laboratory, Los Alamos, NM 87545, USA.

Sensors (Basel, Switzerland)
|August 29, 2024
PubMed
概括

这项研究引入了一种新的双传感器超声波方法,用于精确的厚度测量,即使在不同的温度下. 该技术相比传统的工艺控制和腐蚀监测方法,大大减少了错误.

科学领域:

  • 材料科学 材料科学 材料科学
  • 非破坏性测试是一种非破坏性测试.
  • 声学 声学 在声学方面

背景情况:

  • 超声波厚度测量对于工艺控制和腐蚀监测至关重要.
  • 整个结构的温度变化显著影响超声波速度和测量精度.
  • 传统方法往往假定温度均,导致在不均的热条件下存在重大错误.

研究的目的:

  • 开发一种精确的超声波厚度测量技术,用于具有任意时间变量热谱的机械结构.
  • 克服现有方法的局限性,这些方法依赖于统一的温度假设或复杂的代补偿.

主要方法:

  • 提出了一种新的双传感器技术,利用压缩和剪切超声波.
  • 实施了一种非代,快速的数据处理方法,用于实时厚度估计.
  • 利用剪切和压缩波的独立传播特征来制定估计.

主要成果:

  • 在钢板上的实验验证证明了该技术的有效性.
  • 与传统方法相比,可以减少高达98%的厚度估计误差.
  • 在复杂和时间变化的热条件下成功执行精确的厚度测量.

结论:

关键词:
腐蚀监测 腐蚀监测 腐蚀监测实时测量的实时测量.温度补偿是一种温度补偿.短暂的热状态是短暂的热状态.超声波测厚度测量仪

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  • 拟议的双传感器技术为在具有挑战性的热梯度的情况下进行超声波厚度测量提供了强大而准确的解决方案.
  • 这种方法提高了应用程序的可靠性,如工艺控制和腐蚀监测,在这些应用程序中不能保证温度均性.