Sample differentiation sampling method for deep sea detection

Abstract

The invention provides a sample differentiation sampling method for deep sea detection, and relates to the technical field of deep sea detection, and the method comprises the following steps: arranging an annular detection disc at the lower end of a lower probe rod; two groups of spiral channels with opposite spiral directions and opposite opening directions are arranged in the annular detection disc; extending the lower probe rod underwater, controlling the lower probe rod to axially rotate, and changing the rotating direction of the lower probe rod every first preset time; the opening of the spiral channel is shielded after a second preset time; the lower probe rod is lifted up, the water samples in the two annular detection discs are taken out for analysis, and a sampling result is obtained. The device is simple in structure, the sampling pipes extend spirally, seabed substances can be effectively sampled, namely, multi-pipe collection can be achieved, the states of all the pipes are different, the device can effectively face seabed complex ocean currents, the multiple spiral channel collection pipes face different ocean currents to conduct differential collection and sampling, and the sampling efficiency is improved. And the specific condition of seabed complex ocean current can be obtained.

Description

technical field [0001] The invention relates to the technical field of deep sea exploration, [0002] In particular, the present invention relates to a sample differential sampling method for deep-sea exploration. Background technique [0003] Carrying out ocean observations can obtain data about various natural phenomena of the ocean, which is helpful to understand its scientific principles and changing laws, and guide marine scientific research and the development of marine resources. Ocean observations generally require profile measurements to obtain different depth layers. data, which requires observation equipment to be sent to different depths in the seawater to obtain seafloor materials such as sediments at different depths. [0004] For the sampling of deep seabed sediments, there are common box samplers and multi-tube samplers. They have different focuses and are important sampling methods in the field of ocean observation and research. For example, Chinese patent ...

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Problems solved by technology

[0005] However, the above-mentioned sampler still has the following disadvantages: the deep ocean environment is complex, and the ocean currents are criss-crossed. Even if multi-tube collection is used for sampling, the environment and state of many sampling tubes are still the same and single, and only the seabed can be recorded. Samples in a certain situation do not have differential sampling capabilities and cannot obtain the specific conditions of complex ocean currents on the seabed

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