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.


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    Title :

    OPTICAL RAIN SENSOR AND METHOD FOR DETERMINING A MINIMAL RAIN DROP RADIUS


    Additional title:

    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


    Contributors:

    Publication date :

    2022-11-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    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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