Signal acquisition device for electromagnetic open channel flow measurement

The utility model relates to the technical field of water flow measurement and acquisition, and discloses a signal acquisition device for electromagnetic open channel flow measurement, which comprises a support and an instrument box mounted on one side of the support, a lifting frame is arranged below the support, the bottom of the lifting frame is provided with a mounting groove, one side of the lifting frame is provided with an inclined frame, and the inclined frame is provided with a mounting groove. Flowmeter bodies are installed on one side of the inclined frame and in the installation groove of the lifting frame respectively, the flowmeter bodies are electrically connected with an instrument box respectively, a water level gauge body is installed at the bottom of the support and electrically connected with the instrument box, and a driving assembly for driving the lifting frame to ascend and descend is arranged at the top of the support. The lifting frame can be conveniently lifted to the interior of th