Detection device and detection method capable of measuring dissolved oxygen at different horizontal positions and different heights of mud-water interface simultaneously in situ

Abstract

The invention discloses a detection device capable of measuring dissolved oxygen at different horizontal positions and different heights of a mud-water interface simultaneously in situ. The detection device comprises a dissolved oxygen micro optrode host, multiple detection probes and a detection box; the detection box can be placed on the mud-water interface and is provided with a vertically-communicated water flowing cavity, and multiple front inserting grooves and multiple rear inserting grooves which horizontally extend towards the interior of the detection box are formed in the front side face and the rear side face of the detection box respectively; the detection device further comprises inserting sheets which are provided with probe grooves, each detection probe can be put into the probe groove of the corresponding inserting sheet to be fixed, and the inserting sheets can be inserted into the front inserting grooves or the rear inserting grooves and enable probe needles of the detection probes to be placed in the water flowing cavity. The detection device can measure the dissolved oxygen at the different heights and the different horizontal positions simultaneously and is rapid and convenient to use.

Description

technical field [0001] The invention relates to the technical field of dissolved oxygen detection equipment, in particular to a detection device and a detection method capable of simultaneously in-situ measuring dissolved oxygen at different horizontal positions and different heights of a mud-water interface. Background technique [0002] The dissolved oxygen micro-optorode is a one-dimensional microprobe technology that can measure the dissolved oxygen concentration at a certain point on the mud-water interface. It is an optical fiber information exchange sensor based on the principle of fluorescence quenching. Since oxygen is the natural quencher of some fluorescent indicators, it makes an oxygen sensitive fluorescent indicator into an oxygen sensing film and couples it to the end of the optical fiber. It uses a high-brightness light-emitting diode As a light source and miniature photodiode detection system, the oxygen concentration is determined through the optical fiber ...

AI Technical Summary

Problems solved by technology

[0005] 1. In-situ measurement cannot be realized, and it is necessary to collect samples of the mud-water interface into the detection container. This process will easily lead to changes in the natural environment near the mud-water interface, resulting in a discrepancy between the dissolved oxygen at the mud-water interface and the actual situation;

[0006] 2. Only one dissolved oxygen micro-optorode probe can be controlled at a time to detect the dissolved oxygen at a certain height of a certain position of the mud-water interface. For the dissolved oxygen at other heights of the mud-water interface, and the dissolved oxygen at other positions of the mud-water interface at this height It can only be obtained through multiple measurements, but multiple measurements will have a large span in time and cannot reflect its real situation;

[0007] 3. The height of the probe from the mud-water interface requires mechanical control and is easily damaged. The operation is time-consuming and labor-intensive, and the detection is very inconvenient

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