Combined Bending Strain and Temperature Compensation Method for Flexible Pressure Sensing Arrays
Focusing on the complex pressure characteristics of flexible pressure sensor arrays when pressure measurements are performed on curved and temperature-varying surfaces,a joint compensation device for sensors based on depth and infrared cameras is proposed,and a method for obtaining the compensation reference amount for each sensing unit and calculating the true pressure value for the joint com-pensation device is introduced. The software COMSOL is used to simulate and model the flexible pressure sensor array,build a simulation scenario with different bending strains of each sensing unit,and generate a sample set for the joint compensation model of bending strain and temperature change. A BP neural network-based combined bending strain and temperature compensation model for flexible pressure sensor arrays is constructed. After calculation and verification,the relative error percentage between the pressure compensation value and the real value is controlled within 0.4％,and the compensation effect is obvious,which meets the demand for precise compensation for dif-ferent bending strain conditions of each sensing unit and is useful for the practical application of flexible pressure sensor arrays.
万方数据
维普
