WANG Xiao-hong 1, WU De-hui 1. Intellectual correction and temperature compensation of transducer based on LS-SVM[J]. 2007, (3): 76-79. DOI: 10.13873/j.1000-97872007.03.024.
A novel method for temperature compensation and nonlinear correction of transducer based on least squares support vector machine(LS-SVM) is presented.The design steps and algorithm are also addressed.LS-SVM is used to build as an inverse model
by which the transducer nonlinear characteristic is mapped.The temperature compensation and nonlinear correction are realized synchronously.The experiment results of applying in the capacitor pressure sensor(CPS) show that the speed of this LS-SVM building model is 1~2 order of magnitude
while the compensation errors is 20 % of SVM model.As a result
the method is faster in learning speed
high in accuracy and robust in noise resistance
it is more suitable for sensor’s correction and temperature compensation.