Water body layering sampling testing device

Abstract

The invention relates to a water body layering sampling testing device which comprises a sampling unit, a water sample detection circuit, a signal processing single circuit, an underwater detection unit and a power supply control circuit, wherein the sampling unit is used for sampling water bodies of different depths so as to obtain water samples; the water sample detection circuit is used for acquiring the water samples so as to obtain water sample information; the signal processing single circuit is used for performing digit-to-analog conversion on the water sample information, used for amplifying the water sample information and used for transmitting the water sample information to a host computer; the underwater detection unit is used for acquiring water sample property information by using a water sample property detection probe so as to form a feedback loop; the power supply control circuit comprises a communication unit and a voltage allocation unit; the communication unit is used for receiving a control signal of the host computer and used for transmitting the working signals into the voltage allocation unit; the voltage allocation unit can enter into a working state through the working signal to feed working voltage into the water sample detection circuit, the signal processing single circuit, the underwater detection unit and the sampling unit. The water body layering sampling testing device has the beneficial effects that the sampling unit is simple in structure and easy to assemble and adjust, can be disassembled and separated from other modules and can be used independently, and the depth can be conveniently adjusted according to scales on a rope, so that the water bodies of different depths can be sampled.

Description

technical field [0001] The invention relates to the fields of water pollution monitoring and hydrological observation, in particular to a water body sampling test device. Background technique [0002] In water pollution monitoring and hydrological observation, it is often necessary to extract water samples from different water bodies, especially water samples at different water depths are required for detailed research on water bodies. Although there are some sampling devices in the market, they are often limited by factors such as sampling depth and preventing interference of water samples after sampling. The shallow sampling depth is difficult to be used for sampling water samples of various water depths. The universal applicability is not strong, and the sampling volume is difficult to be accurate. Control, the inability to flexibly change the sampling location, and the separation of the sampling and testing process lead to changes in the properties of the water sample an...

AI Technical Summary

Problems solved by technology

Although there are some sampling devices in the market, they are often limited by factors such as sampling depth and preventing interference of water samples after sampling. The shallow sampling depth is difficult to be used for sampling water samples of various water depths. The universal applicability is not strong, and the sampling volume is difficult to be accurate. control, inability to flexibly change sampling locations, and the separation of sampling and testing processes lead to changes in the properties of water samples, etc.

[0003] On the other hand, considering that the data transmission forms in each lower-level system circuit in the water sample collection system are different (such as digital signals or analog signals), there is interference in all levels of circuits, and there is a lack of corresponding isolation measures. And quantitative analysis brings huge error, becomes the difficult problem of those skilled in the art

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