| 摘要 |
A sensor arrangement, suitable for an antenna installation, or an antenna installation including an antenna array 10 located in an enclosure 12 which is supplied with an air conditioned atmosphere, is disclosed. The air conditioning sensor arrangement comprises a dew point sensor 22 disposed in an outward or return air flow path 18 from an enclosure 12 and an air flow rate sensor 24 to monitor the air flow in the said outward or return air flow path 18 and arranged to generate an alarm if the said air flow rate falls below a predetermined threshold. The air flow sensor 24 may be located downstream from the dew point sensor 22 and may provide a two state, flow/no flow, output signal. The antenna installation may include a series of antenna arrays 10 which are each in a respective enclosure 12 where the air from a dry air source 16 is supplied to the first enclosure 12 and follows a flow path 14 through the series of enclosures 12 and where the dew point sensor 22 and the air flow sensor 24 are in the outward or return air flow path 18 from the final enclosure in the series. The air conditioning system may be used for an antenna installation located on board a ship. |
