基于QPSO—SVM算法的PDS变送器温度补偿方法

Temperature Compensation Method Based on QPSO—SVM Algorithm of the PDS Transmitter

摘要:

由于PDS压力变送器[1] 的测量数据会随着温度的变化而发生温度漂移,文中提出了量子粒子群[2](QPSO)算法和支持向量机[3](SVM)算法相结合的方法对压力变送器的输出数据进行补偿处理,通过QPSO算法优化SVM参数C、δ²,然后利用SVM的函数拟合建立补偿模型；通过分析工程实验结果,该方法在全局收敛性、非线性目标函数逼近能力等方面效果显著,在压力传感器温度补偿处理上具有较高的实用性。

Abstract:

Because the Grating measuring data isolation pressure transmitter [1] occur temperature drift and zero drift due to temperaturechange,This paper presents a genetic [2] (GA) algorithm and support vector machine (SVM) method of [3]algorithm combined with the output data of pressure transmitter for compensating treatment,It get the parameters C andδ² with the SVM though genetic method optimize,Then get the model of the SVM function fitting;Through the analysis of Engineering experiments,nonlinear target function approximation ability and other aspects significantly,It has much utility between Temperature compensation of pressure sensor.