| 摘要 |
<p>A combined sensor comprises a hybrid sensorhead 1 for sensing capacitive and / or inductive changes, and evaluation means 2 for processing the signal from the hybrid sensorhead 1. The respective operation mode of the combined sensor can either be controlled by manually operable selection means 3 or by automatically one-time-programmable (OTP) or reprogrammable control means 4. The hybrid sensorhead 1 comprises an oscillator coil 10 forming a sensing means with the combined sensor working in the respective operation mode, together with an partially conductive core 11. By combining a capacitive and an inductive principle, an intelligent electronic sensor capable of applying at least two different sensing principles in one housing is provided. This combination of different sensing principles guarantees a synergetic effect concerning a secure and reliable detection of more than only one different type of approaching object. Besides, costs and space, required by electronic devices containing such sensors, are reduced. <IMAGE></p> |
