| 摘要 |
<p>The invention specifies a sensor element for a gas sensor for measuring a physical property of a measurement gas, in particular the concentration of a gas component or the temperature, said sensor element having an electrical heating apparatus (12), which is arranged in a ceramic sensor body (11) and has connection conductor tracks (15, 16), and a resistance heater (14) which is connected to connection points (17, 18) of the connection conductor tracks (15, 16). In order to achieve a uniform temperature distribution in the heating region of the layer composite (11), the resistance heater (14) has current paths (21) which extend over the large-area heating region, are connected in parallel and are formed in such a manner that they have the same non-reactive resistance in the tolerance range when considered from the connection points (17, 18).</p> |
