Self-compensated dual-circuit conductivity detection monitor with symmetrical leads

Abstract

The invention discloses a self-compensated dual-circuit conductivity detection monitor with symmetrical leads, which comprises a display device and a built-in circuit board, wherein the display device comprises a liquid crystal touch screen, a display window, an operation button and an indication lamp; and the built-in circuit board comprises a mainboard, a display board and a power supply board, and the mainboard is respectively electrically connected with the display board and the power supply board. The self-compensated dual-circuit conductivity detection monitor is used for monitoring and controlling the conductivity in real time, and has the advantages of high measurement precision, reliability in use, complete interference resistance, convenience for operation, high automation degree, high intelligent degree, convenience for manufacture and maintenance, low cost and the like.

Description

technical field [0001] The invention belongs to the field of on-line detection of chemical process parameters, and relates to an on-line indirect detection device for micro-sugar content in sugar factories, in particular to a dual-channel conductivity detection and monitoring instrument with self-compensation of symmetrical wires. Background technique [0002] In the chemical reaction process, the conductivity is an important parameter of the solution, its size directly reflects the conductivity of the solution, and is closely related to the concentration of the electrolyte; the concentration of organic matter can also be converted into conductive substances through appropriate reactors, and then Measure the change in conductivity before and after the reaction, and then calculate its concentration; in addition, there is a type of semi-electrolyte whose concentration is also closely related to conductivity under high-frequency excitation; these are carried out with conductivit...

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Problems solved by technology

[0002] In the chemical reaction process, the conductivity is an important parameter of the solution, its size directly reflects the conductivity of the solution, and is closely related to the concentration of the electrolyte; the concentration of organic matter can also be converted into conductive substances through appropriate reactors, and then Measure the change in conductivity before and after the reaction, and then calculate its concentration; in addition, there is a type of semi-electrolyte whose concentration is also closely related to conductivity under high-frequency excitation; these are carried out with conductivity as an intermediate variable. For other parameter detection occasions, a stable and accurate conductivity detection device is required. At present, the conductivity detection devices produced by domestic manufacturers generally use a resistance box to manually verify the conductivity device, which is cumbersome to use and has a low degree of automation; Or the influence of wires on conductivity detection is not considered, which seriously affects the self-calibration accuracy and detection accuracy, especially in the case of high-frequency excitation; most of the equipment imported from abroad is expensive and difficult to maintain

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