A constant-volume double-float runoff plot sediment content measuring device

Abstract

The utility model discloses a constant volume double float runoff plot silt content measuring device. Fusion traditional weighing and automation technology, solve artificial efficiency low, photoelectric pollution, capacitance interference and gamma ray hidden trouble and so on. System is by upper floater cavity, lower float ball cavity and singlechip weighing system constitutes, and double float linkage drainage. Silt water reaches preset height, and big floater floats up and makes float ball also float, and triggers drainage. Water flow sensor detects drainage, and singlechip weighing records data, and realizes isometric volume discharge according to buoyancy. Adopt ESP32 singlechip, integrated WiFi module, supports data real -time upload cloud, combines with outer wall scale and final weighing and calculates silt volume. The final silt total amount is calculated through formula, and the measurement accuracy is ensured by combining automation and manual reading. The utility model has the advantages of real -time acquisition, no pollution, compact structure, adapt to different runoff, low maintenance cost, provides efficient, reliable and low -cost solution for soil and water loss monitoring.

Claims

1. A constant volume dual float runoff plot sediment content measuring device, characterized by, include: The upper float chamber (1) contains a large circular float (101). The large circular float (101) has four rectangular slots at 0°, 90°, 180° and 270° as drain outlets (102) to drain the runoff in the upper float chamber (1) into the lower float chamber (2). The outer walls of the upper float chamber (1) and the lower float chamber (2) are graduated to indicate the volume of sediment and water corresponding to different water levels, which is used to read the volume of sediment and water remaining in the chamber when the runoff ends. The lower float cavity (2) includes a nylon traction rope (201), a float (202), a drain pipe (203), and a water flow sensor (204). One end of the nylon traction rope (201) is connected to the center of the bottom of the large circular float (101), and the other end is connected to the top of the float (202). The bottom of the lower float cavity (2) has a circular drain outlet connected to the drain pipe (203) for discharging runoff sediment water. The water flow sensor (204) is connected to the drain pipe (203). The single-chip microcomputer weighing system (3) includes a single-chip microcomputer (301), a weighing platform (302), a weighing bracket (303), a real-time clock chip (304), a non-volatile memory (305), an interrupt connection line (306) between the single-chip microcomputer and the water flow sensor, and a liquid crystal display (307); one end of the interrupt connection line (306) is connected to the water flow sensor (204), and the other end is connected to the I / O port of the single-chip microcomputer (301) for receiving external interrupt signals; the weighing bracket (303) is placed on the weighing platform (302) to support the upper float cavity (1) and the lower float ball cavity (2).

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