| 摘要 |
A rain sensor is described comprising a tray for the collection of rain water provided on top with evaporation and overflow side windows covered by a perforated cover. A finned float is housed in said tray so as to be able to move vertically as a function of the level of the water present in the tray. A permanent magnet supported by said float cooperates with an electric magneto-sensitive switch that is fixed to the tray in order to switch it between a first and a second electric state as a function of the vertical position of the float.
|
