Hydrogen leak sensor

NGK Japan releases hydrogen leak detection sensors for FCVs

NGK Japan announced that it has begun sales of hydrogen leak detection sensors for FCV cars.

While FCV cars are expected to be the wave of the future, leaking hydrogen presents a safety concern. The sensors notify the driver if there is hydrogen leaking from the FCV system’s hydrogen tank or stack so that the driver can stop the leak.

The sensors NGK is releasing now use a new system called Heat Conduction System. By measuring the heat quantity of hydrogen going out of the heater, it can detect with high precision whether there is hydrogen gas or not. Because the new system doesn’t use chemical reactions, there is little degradation over time, operation and response are fast, and it can handle shock and vibration well.

(Translated by Greg Scott)