使用螺旋式蛇形部署的分布式光纤传感器,可实现高精度全场温度重建和袋式离子电池的热管理
Yuhao Zhu1, Xiaoqiang Zhang1, Yunlong Shang1
1School of Control Science and Engineering, Shandong University, Jinan, 250061, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|September 5, 2025
概括
一个新的螺旋蛇形分布式光纤传感器 (DOFS) 为电池安全提供全方位的实时温度监测. 这种先进的方法通过提供全面的温度映射和改进的热管理洞察力,超越了传统的传感器.
科学领域:
- 电池技术
- 传感器系统
- 热管理
背景情况:
- 准确的电池温度监测对于安全性和性能至关重要.
- 由于离散采样,传统传感器提供有限的数据.
- 现有的方法难以进行全面的实时温度测绘.
研究的目的:
- 开发一种新的分布式光纤传感器 (DOFS),用于现场全方位的温度测量.
- 通过准确的实时温度场重建来增强电池的热管理.
- 提高电池温度监测的可靠性和准确性.
主要方法:
- 实现了螺旋蛇形分布式光纤传感器 (DOFS) 布局,以实现高空间分辨率 (1.28 mm).
- 开发了一个局部自适应的辐射基函数插入算法,用于温度场的重建.
- 纳入不确定性量化以提高可靠性,并对大型离子电池进行实验验证.
主要成果:
- 通过DOFS系统,电动汽车电池的温度变化得到了准确的实时捕获.
- 重建方法精确地绘制了全场温度分布,最大标准偏差低于0.3°C.
- 在传统的热电偶,红外热像和纤维布拉格传感器上表现出优势.
结论:
- 螺旋蛇形DOFS为全面的电池温度监测提供了卓越的解决方案.
- 开发的重建算法确保了准确可靠的全场温度映射.
- 这项技术为优化电池热管理系统和提高安全性提供了宝贵的见解.
更多相关视频
09:03A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
Published on: January 7, 2019
7.3K
10:52Design, Instrumentation and Usage Protocols for Distributed In Situ Thermal Hot Spots Monitoring in Electric Coils using FBG Sensor Multiplexing
Published on: March 8, 2020
5.9K
相关概念视频
Equipments Used to Measure Body Temperature
2.1K
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,...
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,...
2.1K
Temperature Measurement Sites
4.3K
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...
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...
4.3K
Assessing Body Temperature - Axilla
1.9K
Procedural Guide for Assessing Axillary Body Temperature using a Digital Thermometer:
Step 1: Perform hand hygiene and put on clean gloves to maintain infection control and prevent cross-contamination.
Step 2: Prepare the patient by explaining the procedure to ensure understanding and cooperation. Ensure privacy, expose the axilla, and inform the patient that minimal movement is crucial for an accurate reading.
Step 3: Adjust the patient’s clothing to expose only the axilla. It minimizes...
Step 1: Perform hand hygiene and put on clean gloves to maintain infection control and prevent cross-contamination.
Step 2: Prepare the patient by explaining the procedure to ensure understanding and cooperation. Ensure privacy, expose the axilla, and inform the patient that minimal movement is crucial for an accurate reading.
Step 3: Adjust the patient’s clothing to expose only the axilla. It minimizes...
1.9K
