Patent ID: 8580095

Claim:
A sensor element for determining a gas component in a measuring gas, comprising: a first and a second electrode; a solid electrolyte situated between the electrodes; a heater having a heating element; an insulation surrounding the heating element; and a heat-insulating area arranged on a side of the heater facing away from the electrodes, the condition: h/j= 0.25 to 0.75 being met, h being a width of the heat-insulating area and j being an overall width of the sensor element; wherein the heating element has a meander pattern including a first external heating area, a second external heating area, a first internal heating area, and a second internal heating area; wherein the condition: e /( e+f+g )=0.2 to 0.45 is met, e being a distance between the heater and the heat-insulating area, f being a thickness of the heat-insulating area, and g being a distance of the heat-insulating area to a bottom of the sensor element; and wherein the conditions: f /( e+f+g )>0.18; and f≧ 50 μm are met, e being a distance between the heater and the heat-insulating area, f being a thickness of the heat-insulating area, and g being a distance of the heat-insulating area to a bottom of the sensor element.