| 摘要 |
<p>The sensor is fed with energy via an optical fibre (1) and transmits the measured information (D) by way of another optical fibre (13). A mosaic (2) of photovoltaic detectors connected in series and of substantially circular form is arranged directly opposite the fibre (1) supplying the energy. A coding circuit (11) comprises a capacitor which is charged by way of a charging resistor under the output voltage of the detectors of the mosaic, and is periodically discharged, with a period which is related to the measured information, into a light-emitting diode (12). The sensor can advantageously be used as a proximity sensor. <IMAGE></p> |
