The invention provides an improved liquid stirring device, belonging to the technical field of machinery, and solving the technical problems of relatively low stirring efficiency and the like in the prior art. The stirring device comprises a bracket, wherein a stirring bucket is fixedly arranged on the bracket; a drum is arranged in the stirring bucket; a plurality of stirring blades are hinged on the outer wall of the drum; an iron adsorption strip is arranged at the outer end of each stirring blade; at least one permanent magnet is fixedly arranged on the outer wall of the stirring bucket; an overflow hole is formed in the middle of the stirring blade. The improved liquid stirring device has the advantages of high stirring efficiency and the like.

Improved liquid stirring device

The invention discloses a telescopic water velocity measuring device. The device comprises a buoy, a telescopic mechanism, a supporting frame, a detection mechanism and a downstream mechanism. The topsurface of the buoy is provided with a solar photovoltaic panel for providing electric energy required by the whole measuring device. The telescopic mechanism comprises a supporting tube, a telescopic tube, a pull rod, a first pulley and a pull rope. The telescopic tube sleeves the external wall of the supporting tube. The pull rod is arranged below the telescopic tube so that the pull rod upwardly and downwardly moves in case of stretching and retracting to drive the telescopic tube to retract, and the supporting frame is enabled to upwardly and downwardly slide. The first chute arranged onthe bottom part of the slide plate of the detection mechanism is internally provided with a flow velocity sensor so that the slide plate is enabled to slide along the first chute and the flow velocitysensor arranged in the groove is enabled to be exposed. The telescopic water velocity measuring device is simple in structure and convenient to operate and has great practicality and market development potential.

Telescopic water velocity measuring device

The embodiment of the invention discloses an ocean parameter measuring system, which comprises a sea water sampling device, an ocean parameter measuring device group, a debubbling device, and sea water sample conveying pipelines for communicating the sea water sampling device, the ocean parameter measuring device group and the debubbling device, wherein the sea water sampling device conveys collected sea water samples to the debubbling device through the sea water sample conveying pipelines; the debubbling device is provided with a centrifugal module which is used for performing centrifugal treatment on primary sea water samples to enable the primary sea water samples to become bubble-free sea water samples; and sensors in the ocean parameter measuring device respectively perform ocean parametric measurement on the sea water samples conveyed to the ocean parameter measuring device through the sea water sample conveying pipelines According to the ocean parameter measuring system, through the centrifugal treatment on the sea water samples before the ocean parameter measurement, the influence of bubbles in the collected sea water samples on the precision of the ocean parameter measurement is reduced

Ocean parameter measuring system

The present invention discloses a real-time monitoring device of long-term monitoring river bottom hydrological parameters, and relates to the hydrological parameter monitoring technology field The device comprises a sealed floating drum anchored at the bottom of the river and internally provided with a gyroscope sensor and a hydrological parameter sensor The real-time monitoring device of long-term monitoring river bottom hydrological parameters can measure the flow direction and flow speed of the water body in the river to make up the blank that the current measurement device cannot measure the flow direction and the flow speed, can provide long-term electric power to allow the real-time monitoring device to be arranged under the water for a long time without the influence of the factors such as measurement of the climate, especially, can solve the problem that the flow condition at the bottom of the freeze period of the surface of the river cannot be measured so as to realize the real-time monitoring of the underwater hydrological parameters and provide more comprehensive and timely data for professional research department in the fields such as hydrogeological investigation, water area dynamic study and disaster warning, etc

Real-time monitoring device of long-term monitoring river bottom hydrological parameters

The invention discloses an omnidirectional current meter of a coupled water quality sensor, of which a technical scheme is as follows: the omnidirectional current meter of the coupled water quality sensor comprises a water quality sensor, and the omnidirectional current meter of the coupled water quality sensor is characterized in that the water quality sensor comprises a housing, a fixed shaft is arranged at the centre of the working surface of the water quality sensor, the fixed shaft is provided with an omnidirectional turbine flow rate vane wheel through a bearing, at least two permanent magnets are mounted on the omnidirectional turbine flow rate vane wheel, and magnetic polarities of neighboring permanent magnets are opposite to each other; the housing of the water quality sensor isfurther provided with an induction element of a bipolar latch-type Hall sensor, the induction element is matched with the permanent magnets, and the Hall sensor and the water quality sensor share a power supply circuit and a cable. The omnidirectional current meter of the coupled water quality sensor has the following advantages that: the omnidirectional current meter can be adaptive to the change of flow direction in a water area of which the flow direction is unknown, or can be carried on a buoy to work; and the bipolar latch-type Hall sensor improves the accuracy and the reliability of flow rate measurement, and shares the housing, relative circuits and cables with the water quality sensor, so that cost is reduced, and structure is simplified.

Omnidirectional current meter of coupled water quality sensor

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Omnidirectional current meter of coupled water quality sensor