A precompensation method of thermal errors in CNC machine tools is presented.
研究了数控机床热误差的预补偿方法。
A grouping optimization modeling for the thermal errors of NC machine tools was presented.
提出数控机床热误差分组优化建模。
In chapter 4, the experiment of temperature-thermal Errors of CNC machine tools is introduced.
第四章，主要论述了数控机床热误差实验。
This paper presents a state space model based on spindle rotation speed for thermal errors of machine tool.
本文提出了一种基于主轴转速的机床热误差状态方程模型。
Then it established the mathematical model of temperature and thermal errors using the polynomial linear regression theory.
然后应用多元线性回归理论建立了关键测温点的温升和热误差的数学模型。
This paper analysed and calculated the thermal effects on precision measurements, discussed methods for reducing and compensating thermal errors and then goes further into the model construction.
分析计算了精密测量中温度误差的影响，讨论了减少和补偿温度误差的方法，并就仪器温度误差的建模问题进行了探讨。
Finally, the lag errors of different designs and the applications of shelter thermal inertia in temperature observation are also discussed.
最后论述了不同类型百叶箱的滞后误差以及百叶箱的热惯性在测温中的应用。
The errors caused by Thermal capacity of heater are found by analytical method.
加热器热容引起的误差用解析法求出。
Based on the theory of MBS, presenting the comprehensive errors model consisting of offset probe errors, geometric errors, screw thermal error and spindle error.
以多体系统理论(MBS)为基础，建立了包含测头误差、机床几何误差、丝杠和主轴热误差的综合误差补偿模型。
The numerical computation shows that the proposed method is able to identify efficiently the concrete thermal parameters while the measurement errors of temperatures are considered.
数值计算结果表明，在考虑到温度观测误差的条件下，所建立的参数反演方法能够有效地识别出混凝土的热力学参数。
In temperature measurement of the thermal resistor, the nonlinearity of thermal resistor, lead resistor and unbalanced bridge may produce errors.
热电阻温度测量中，热电阻的非线性、不平衡电桥的非线性及引线电阻都会给测量带来误差。
In the meanwhile, the errors caused by the application of two-dimensional calculation in the intersecting thermal bridge part and the method of correction are also investigated.
本文同时介绍了交叉热桥部位采用二维计算所引起的误差和修正方法。
In the meanwhile, the errors caused by the application of two-dimensional calculation in the intersecting thermal bridge part and the method of correction are also investigated.
本文同时介绍了交叉热桥部位采用二维计算所引起的误差和修正方法。
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