Two dimensional distribution detecting apparatus for dissolving oxygen at sediment-seawater interface

Abstract

The invention provides a two dimensional distribution detecting apparatus for dissolving oxygen at a sediment-seawater interface, which comprises a sealed cabin, an under-water plug installed on the top of the sealed cabin, an image-recording board, an image collecting board, a digital imaging system, a semi-reflection lens sequentially disposed from the top to the bottom in the sealed cabin. Filters are disposed at the bottom of the digital imaging system, oxygen dissolving sensing membrane glass is fixed outside a terminal window of the triangular sealing structure, a reflector is disposed on the inclined edge of the triangular sealing structure, which is parallel to the semi-reflecting lens. The two dimensional distribution detecting apparatus solves the problems of complicated operation, time wasting caused by that by adopting electrode type chemical sensors, only dissolved oxygen concentration of single point can be recorded, and sequential repeated measurement at a plurality of points is needed in the two dimensional dissolved oxygen concentration changing monitoring process.

Description

technical field [0001] The invention relates to a two-dimensional distribution detection device for dissolved oxygen at the sediment-seawater interface. Background technique [0002] With the rapid development of human economy and society, a series of marine environment and ecological problems have been triggered. For example, a large amount of harmful substances in oil spills at sea and various sewage discharged along the coast are deposited on the seabed, resulting in increasingly serious pollution of seabed sediments and deterioration of the ecological environment of the seabed. In order to control and manage the coastal seabed environment, it is necessary to monitor the material flux exchange process at the seabed sediment and seawater interface, such as dissolved oxygen, carbon dioxide, nitrate and other index parameters, in order to formulate corresponding management and protection measures for human society. guarantee for sustainable development. At present, the dis...

AI Technical Summary

Problems solved by technology

However, these dissolved oxygen sensors can only detect the dissolved oxygen concentration at a certain point in space. To measure the dissolved oxygen concentration of a two-dimensional section of the sediment-seawater interface requires multiple chemical sensors to measure simultaneously at different depths. The measurement method requires complex underwater control devices to implement, which increases the cost and operational complexity of underwater observation equipment

Images