A high-precision, intelligent, large-range, constant-current bubble-type water level measuring instrument

Abstract

The present invention discloses a high-precision intelligent large-range constant-current bubble-type water level measuring instrument, comprising a box body, which is installed on a bank; a sensor, which is connected to the controller; a connecting air pipe, on which a one-way valve and a three-way connection are installed; a first air chamber and a second air chamber, which are fixed on the outer plate of the box body, and the first air chamber and the second air chamber are respectively connected to an air inlet pipe and a measuring air pipe; an air pump, which connects the first air chamber and the three-way connection through the connecting air pipe; a measuring air pipe, on the outer side of which a protective tube is wrapped; and a positioning box, on the inside of which a moving plate is installed. The high-precision intelligent large-range constant-current bubble-type water level measuring instrument uses a positioning box to connect two sections of measuring air pipes. When the moving plate moves inward, the pressure of water level A is measured. When the moving plate is reset, the pressure of water level B is measured. The height difference between the two water levels is fixed, so as to eliminate the influence of water density on the measurement result.

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