Research of Indirect Measurement PEM Moisture Based on Impedance Testing

PEM moisture of fuel cell is difficult to measured directly,so we point out indirect measurement method of PEM moisture based on BP neural network.The impedance of single-PEM-chip and temperature data which are two inputs provided by online testing device.We are required to under the DSP2407 as a core design of the device.The results show that the device meet the performance requirements,BP network indirect measurement model can predict the average PEM moisture stack well.