WATER INSTRUMENT FIXING APPARATUS AND WATER QUALITY SET-DEPTH IN-SITU MONITORING SYSTEM USING SAME

摘要

A water instrument fixing apparatus, comprising an upright column (2) and a buoyant box (4). The buoyant box (4) is sleeved on the upright column (2), and can move up and down along the upright column (2); the buoyant box (4) is provided with a water pipe (6) and an air pipe (8); the water pipe (6) is used for feeding water into the buoyant box (4) or draining water in the buoyant box (4) so that the weight of the buoyant box (4) is adjustable; the air pipe (8) is used for feeding air into the buoyant box (4) or draining air in the buoyant box (4) so that the air pressure in the buoyant box (4) is adjustable. The water instrument fixing apparatus is used as a fixed monitoring instrument (18) in a water quality set-depth in-situ monitoring system; the monitoring instrument (18) is fixed onto the buoyant box (4); the position of the monitoring instrument (18) is adjusted as the buoyant box (4) is positioned at different depths in water. The purpose of water quality set-depth in-situ monitoring is achieved, the structure is simple, it is easy to manufacture and process, and the costs are low.