Omnidirectional current meter of coupled water quality sensor

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.