| 摘要 |
A protecting device (2) for a teat localizer, comprising a housing (4) having side walls, a top wall and a bottom wall, and being adapted to accommodate a localizer comprising an illuminator (20) and a viewing element (22). One (14) of the walls comprises a transparent portion providing an unimpeded light beam path for the localizer (20,22). The housing is provided with moisture deposition-preventing element for preventing moisture deposition on at least the inside surface of the transparent wall portion (14). The moisture deposition-preventing element comprises a partition wall (26) in the housing at a distance from the inside surface of the transparent wall portion. This partition wall and at least parts of the housing walls together define within the housing a through-flow gas chamber (30) having a gas inlet (28,32) and a gas outlet (36) allowing a moisture-removing gas flow (F) to be maintained past and close to the inside surface by connecting the gas inlet supply (34) of scavenging gas. |
