| 摘要 |
<p>The invention relates to a freeboard measuring device (10) which is provided with an elongated housing (12) having a rectangular cross section. A pair of fins (14,16) fixedly connected to the housing on each of its sides extend substantially the length of the housing and have at least slightly greater lateral dimensions than the lateral dimension of the housing. The main chamber (26) houses a gauging stick (30), which has a strip of water sensitive material (46) fixedly attached thereto for temporarily retaining a water mark. The main chamber is divided into a lower (38) and upper (39) chamber portions by a separation wall (34) with openings (36) to allow the water to enter the upper chamber portion after it has travelled through the lower chamber portion from water ingress openings (40) formed in the front wall (28) of the housing (12).</p> |
