Abstract:The measurement error was more than 100 ℃ when thermocouple was used to measure the temperature under high-frequency magnetic field.Basing on the electromagnetic field theory analysis,it was found that the error was due to eddy-current effect on the metal tip of the thermocouple.Temperature measuring platform of k type thermocouple under high-frequency magnetic field environment was built with hollow solenoid.With the results of measurement,temperature rising model of K type thermocouple under high-frequency magnetic field was set by use of LSSVR in order to amending the influence of the eddy current effect.The test showed that the temperature rising model maximal relative error was 8%,and verify it was effective method to correct the measurement error.
林苏斌; 陈为. 基于支持向量机的热电偶高频磁场环境测温误差校正[J]. 南昌大学学报(工科版), 2012, 34(02): 183-.
LIN Su-bin,CHEN Wei. Correction of Thermocouple Temperature Measurements Error under High-frequency Magnetic Field Based on Support Vector Machine. , 2012, 34(02): 183-.