Modeling for Hysteresis Nonlinearity and Experimental Research of Capacitance Weighing Transducer
Xie Yu · Electrical Measurement & Instrumentation · 2011
As the elastomer of capacitance weighing transducer,its inherent hysteresis nonlinearity can affect the measurement precision of weighing system.Therefore,the modeling method of the hysteresis nonlinearity of capacitance weighing transducer is discussed in this paper.On the analysis of the structure of the vehicle leaf spring and its working conditions,based on the extended Preisach model,the hysteresis characteristics of capacitance weighing transducer is modeled,mathematical formulas of the model and numerical method are also given,and using the method,some experiments are performed on hysteresis characteristics of actual capacitance weighing transducer.The result shows that the proposed model can approximate the hysteresis nonlinearity characteristics of capacitance weighing transducer accurately,and it can provide theoretical basis for hysteresis compensation of transducer.