Powdery material level detection and control circuit

Abstract

The invention discloses a powdery material level detection and control circuit. In the powdery material level detection and control circuit, a power module provides work voltage needed by a weighing detection circuit, an air pressure detection circuit and various modules. Signals detected by an external detection circuit are transmitted into a controller, the controller carries out data processing on values transmitted back by three sensors in the weighing detection circuit, and the height of materials in a container at present is obtained. Meanwhile, the controller produces feedback signals to be transmitted back to a valve positioning device on a material inlet, adjustment is carried out on flow, and therefore the materials can be stacked to reach a preset height accurately. Meanwhile, the controller can transmit the height of the materials in the container to a nixie tube of a display module, so the fact that real-time material height information is provided for operating staff is facilitated. The powdery material level detection and control circuit is strong in interaction function, and facilitates good operation of the operating staff.

Description

technical field [0001] The invention belongs to the technical field of embedded systems, and relates to the detection and control of powder material level, in particular to a sensing circuit based on AD sampling and a detection control circuit of a single-chip microcomputer core. Background technique [0002] With the rapid development of modern industry, the measurement of material level has become an important technical indicator. Especially in many special occasions, such as in the fields of petroleum and chemical industry, most of the closed containers contain flammable, explosive, volatile, and highly corrosive materials, and the level detection of the materials inside such closed containers is also very difficult. especially important. In the traditional material level measuring devices, most of them adopt contact measurement. In such devices, the contact of the measuring components with the medium causes their failure to be repaired particularly difficult, which can...

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Problems solved by technology

[0003] The present invention aims at unreasonable material level measurement methods and low control precision under current special working conditions, and designs a low power consumption feedback adjustment detection control circuit with display function

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