Water turbidity detection device and determination method

The water turbidity detection device comprises a water container, a measuring rod is arranged in the water container, one end of the measuring rod is connected with a universal joint, the universal joint is installed on the inner side wall of the water container, and a pushing mechanism, a photosensitive element and a light source element are arranged in the measuring rod; the pushing mechanism is composed of a motor, a lead screw and a nut seat, the motor is installed at one end in the measuring rod, the lead screw is inserted in an output port of the motor, and the nut seat is sleeved at one end of the lead screw; the photosensitive element is arranged on the nut seat and is composed of a bottom plate, a machine box, an infrared photosensitive diode array and a glass box cover. According to the device and the method for detecting the turbidity of the water body, the real-time measurement distance is obtained through the infrared optical principle, the ultrasonic ranging principle and calculation of the host