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分析簧片式热电偶在测量运动物体温度时测头的受力特性，建立了测头的动力学模型．根据模型，列出了簧片下气体运动的无量纲雷诺方程，并利用二维泰勒展开式和有限差分法对其进行了分析．为减小热电偶测头的磨损和增长其使用寿命，根据测量时簧片的受力情况提出了热电偶簧片的浮动理论，并利用力平衡原理实现了簧片变形量的优化．同时以某热电偶为例，进行了实际分析，得出了气体浮力的分布情况和簧片的最佳变形量．
The force characteristics of the probe when the reed thermocouple is used to measure the temperature of the moving object are analyzed, and the dynamic model of the probe is established. According to the model, the dimensionless Reynolds equation of reed gas movement is listed and analyzed by two-dimensional Taylor expansion and finite difference method. In order to reduce the wear of the thermocouple probe and increase the service life of the thermocouple, the floating theory of the thermocouple reed is proposed according to the force condition of the reed when the measurement is carried out. And the amount of deformation of the reed is optimized by the principle of force balance. At the same time, taking a thermocouple as an example, the actual analysis was carried out, and the distribution of gas buoyancy and the optimal deformation of reed were obtained.