SYSTEM FOR MEASURING THE HYGROMETRY OF AN ION EXCHANGE MEMBRANE IN A FUEL CELL

摘要

The invention relates to a system for measuring the hygrometry of an ion exchange membrane in a fuel cell comprising N electrochemical cells separated by bipolar plates, where N is a natural number, the system comprising: - an electrical current generator for applying an electrical current to the fuel cell; - a device for measuring the voltage in the cells; and - means for determining the impedance of a membrane as a function of a voltage ripple measured by the measuring device across the terminals of the corresponding cell when an electrical current is applied by the electrical current generator, these means being mounted in the device for measuring voltage in the cells.