| 摘要 |
Apparatus for locating a floatable platform (7), comprises upstanding support members (14) arranged to be adjacent to an article (4) submerged in a liquid (5), and extendible members (13) depending from the platform (7). The extendible members (13) on initial extension are arranged to locate on the support members (14), and further extension of the extendible members (13) raises the platform (7) from a buoyant to a partially-buoyant state. A laser device on the platform (7) is arranged to scan a stationary coded target so as to determine the position of the platform (7). <IMAGE> |
