The present application relates to a kind of
temperature and pressure integrated composite sensor fast self-adaptive decoupling method, belong to
intelligent sensor field, solve the
low speed slow problem of temperature pressure decoupling precision.Utilize acquisition model to obtain bridge
voltage signal and corresponding temperature value, pressure value, respectively based on bridge
voltage signal and corresponding temperature value, pressure value constructs first, second sample
data set;Respectively establish temperature, pressure prediction BP neural
network model;First, second sample
data set is trained to temperature, pressure prediction BP neural
network model;
Loss function is calculated when each training iteration, and the learning rate of weight and bias is optimized using
loss function, and the optimized learning rate is used in the process of reverse propagation to adjust weight bias;When the prediction accuracy meets the requirement training ends, respectively obtain trained temperature, pressure prediction BP neural
network model as decoupling model;Real-time bridge
voltage signal is input into decoupling model, and temperature pressure is decoupled in real time.Temperature pressure accurate real-time decoupling is realized.