SENSOR DEVICE FOR FLAME PRESENCE DETECTION

Sensor device (10) for detecting a flame (12), comprising: a carbon dioxide sensor (20) for detecting a CO2 concentration; a fuel sensor (30) for detecting the combustion of a fuel; an electrostatic charge variation sensor (40) for detecting electrostatic charge variations generated by the flame (12); and a control unit (50). The control unit (50) is configured to: acquire a carbon dioxide signal (SA) indicative of the concentration of carbon dioxide, a fuel signal (Sc) indicative of the fuel combustion, and an electrostatic charge variation signal (SQ) indicative of a difference between the electrostatic charge variations detected by a first (40a) and a second (40b) electrode of the electrostatic charge variation sensor (40); determine a quantized signal (SQ') based on the electrostatic charge variation signal (SQ); determine an aggregate datum (IA) based on the carbon dioxide signal (SA), the fuel signal (Sc) and the electrostatic charge variation signal (SQ); and generate, based on the aggregate datum (IA), a flame signal (SF) indicative of the presence or absence of the flame.