The present invention relates to a rain sensor detecting the size of rain drops (115) based on optical effects. The rain sensor is mounted on a first surface (102) of a pane (100) in order to detect the amount of moisture (115) on an opposing second surface (104) of the pane (100), the rain sensor comprising: at least one emitter (110) for emitting electromagnetic radiation, directed from the first surface (102) to the second surface (104) to form at least two rain-sensitive areas (118) on the second surface (104), at least one receiver (112) for sensing radiation emitted by the emitter and that has been internally reflected at the rain-sensitive areas (118), and for generating an output signal indicative of an amount of moisture (115) on the rain-sensitive area (118), and a control unit (120) that calculates a minimal droplet size based on the output signal.
OPTICAL RAIN SENSOR AND METHOD FOR DETERMINING A MINIMAL RAIN DROP RADIUS
OPTISCHER REGENSENSOR UND VERFAHREN ZUR BESTIMMUNG EINES MINIMALEN RADIUSES EINES REGENTROPFENS
CAPTEUR DE PLUIE OPTIQUE ET PROCÉDÉ POUR DÉTERMINER UN RAYON MINIMAL D'UNE GOUTTE DE PLUIE
2022-11-09
Patent
Electronic Resource
English
IPC: | G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen |
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