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相关概念视频

Thermosensation01:43

Thermosensation

Peripheral thermosensation is the perception of external temperature. A change in temperature (on the surface of the skin and other tissues) is detected by a family of temperature-sensitive ion channels called Transient Receptor Potential, or TRP, receptors. These receptors are located on free nerve endings. Those detecting cold temperatures are closer to the surface of the skin than the nerve endings detecting warmth. These thermoTRP channels, while temperature selective, have relatively...
Equipments Used to Measure Body Temperature01:13

Equipments Used to Measure Body Temperature

Body temperature can be assessed using various devices and measured in Celsius or Fahrenheit.
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
Temperature Measurement Sites01:14

Temperature Measurement Sites

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 7, 2026

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
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高灵敏度的海洋温度传感器使用反射光学微纤合器和机器学习方法.

Yan Xu, Yuren Chen, Chenghao Cui

    Applied optics
    |November 27, 2024
    PubMed
    概括
    此摘要是机器生成的。

    一个新的光学微纤合传感器为海洋温度监测提供了增强的耐用性和精度. 机器学习,特别是粒子群优化支持向量回归,显著减少了准确环境数据的解调错误.

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    Near-Infrared Temperature Measurement Technique for Water Surrounding an Induction-heated Small Magnetic Sphere
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    相关实验视频

    Last Updated: May 7, 2026

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    Near-Infrared Temperature Measurement Technique for Water Surrounding an Induction-heated Small Magnetic Sphere
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    科学领域:

    • 海洋学 海洋学 海洋学
    • 材料科学 材料科学 材料科学
    • 传感器技术 传感器技术

    背景情况:

    • 准确的海水温度监测对于了解海洋动态和气候变化至关重要.
    • 现有的传感器面临着耐用性,多参数干扰和环境适应性的挑战.
    • 需要新的传感器设计来克服这些限制,以获得可靠的海洋数据收集.

    研究的目的:

    • 开发和评估一种具有反射银镜 (OMCM) 的新型光学微纤合传感器,用于高精度的海水温度测量.
    • 通过将其封装在聚甲基 (PDMS) 和耐压金属外中,提高传感器性能.
    • 研究机器学习算法的有效性,以调节传感器信号并减少错误.

    主要方法:

    • 在PDMS中封装的OMCM传感器的制造,并安置在一个专门的金属外中.
    • 对温度灵敏度和压力强度的实验性评估.
    • 粒子群优化支持向量回归 (PSO-SVR) 的应用,用于信号解调和与传统方法的比较.

    主要成果:

    • OMCM传感器表现出增强的灵敏度和耐用性.
    • 专门的外有效地将温度测量与压力干扰隔离起来.
    • 与传统方法相比,PSO-SVR显著降低了平均绝对百分比误差 (MAPE) 从2.16%降至0.157%.

    结论:

    • 新型OMCM传感器为海水温度监测提供了强大而准确的解决方案.
    • 机器学习解调,特别是PSO-SVR,大大提高了测量精度.
    • 这项技术为在恶劣条件下高精度监测海洋环境温度提供了有效的工具.