HYDROGEN FLOW SENSOR Russian patent published in 2012 - IPC G01N27/12 

FIELD: physics.

SUBSTANCE: hydrogen flow sensor has a palladium-based hydrogen-sensitive thin-film element (1); the hydrogen-sensitive thin-film element (1) is in form of a cylinder made from porous material (e.g., porous ceramic) whose entire surface is palladium-coated; the hydrogen-sensitive thin-film element (1) lies inside a housing (2), having the shape of a tube; inside the hydrogen-sensitive thin-film element there are heating elements (3) and temperature sensors (4); the hydrogen flow sensor is provided with a magnetic conductor (5) which encircles the hydrogen-sensitive thin-film element on the edge of the cylinder, an inductance coil (6) lying on the magnetic conductor (5), a capacitor (7) which forms with the inductance coil (6) an oscillatory circuit, a signal amplifier (8), measuring (9) and storage (10) devices.

EFFECT: possibility of measuring hydrogen flow rate in continuous mode regardless of the duration of the process.

1 dwg