绝对式涡流传感器非接触测量金属管内液体温度的方法

详细信息

Measurement of the Liquid Temperature in Metal Tube by Absolute Non-Contact Eddy Current Sensor

摘要: 研究了采用绝对式涡流传感器装置测量金属管内液体温度的可行性。根据能够同时获得圆柱导体双参数(相对磁导率μr和电阻率)的涡流检测理论及欧姆定理和圆柱形导体的磁场渗透公式, 建立了液体温度与电阻率、相角等参数的数学模型, 并且设计了相应的绝对式涡流传感器及其检测方法, 通过实验数据验证了理论的有效性。
- 涡流检测 /
- 电阻率 /
- 磁导率 /
- 电涡流传感器
Abstract: This article is to examine the possibility of temperature measurement of liquid metal tube through use of absolute eddy current sensor devices. Based on time two-parameter(relative permeability and resistivity) of cylindrical conductor, and also based on the formula of Ohm law and the cylinder form conductor magnetic field permeates, a mathematic model was established on the relationship between liquid temperature and resistivity, phase angle and other parameters. An absolutely eddy current sensor was designed based on this theory. Experiments showed the feasibility of the theory.
- Eddy current testing /
- Resistivity /
- Permeability /
- Eddy current sensor

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