Thermal diffusivity sensory
This technology is a decisive parameter for determining the concentration and properties of various elements and mixtures.
The thermal diffusivity describes how quickly a temperature change spreads in a substance. This method is used with our hydrogen sensor to determine the hydrogen content in air or nitrogen (N2). As hydrogen has a significantly higher thermal diffusivity than air or N2, this measuring principle is particularly suitable here. This makes it possible to determine the hydrogen concentration with an accuracy of up to 0.1 % and in accordance with the ASIL B(D) risk classification.
Application:
Measurement of H₂ concentration in ambient air as leak detection or measurement of H₂ concentrations inside the fuel cell for control purposes (e.g. purge process).