Relative humidity sensors measured the temperature and RH in the effluent streams. Ignition/extinction is indicative of multiple steady states in PEM fuel cell operation (the same reactor conditions, ...

The resistance output varies based on temperature ... A capacitor type of hygrometer is usually used to measure relative humidity. The sensor has a dielectric polymer layer that absorbs water ...

reflecting changes in relative humidity. For temperature sensing, changes in resistance occur as the metallic conductor’s resistivity increases with rising temperature. The sensors demonstrated ...