Sensor device for a flap device for an air intake system

The sensor arrangement uses a magnet (3), fitted to the shaft (4) of the air intake control flap (1) and cooperating with a contactless sensor (2) for providing a flap position signal, the sensor fitted in a centering ring (11) formed integral with a bearing element (6) for the control flap shaft. The sensor housing (12) can be fitted in the centering ring via an access opening (14) in the assembled air intake housing.