The design and implementation of intelligent pressure transmitter based on MSP430F448
In order to compensate the temperature error and nonlinearity of piezoresistive sensor,an idea of intelligent pressure transmitter based on embedded microprocessor MSP430F448 and Levenberg Marquardt algorithm training artificial neural network is introduced.The system structure and theory of intelligent compensation are the important points of the paper.It is shown that the analog output of sensor has excellent linearity and the accuracy reaches 0.26%