Intelligent four-electrode conductivity sensor

Abstract

The invention discloses an intelligent four-electrode conductivity sensor, which comprises a shell and relay boxes fixedly arranged at two ends of the shell. The two relay boxes are electrically connected with power lines, the upper wall of the shell is concavely provided with a determination chamber, and the lower wall of the determination chamber is internally provided with a sliding cavity. Two conducting strips are tightly attached to the lower wall of the determination chamber, a transmission mechanism is arranged between the conducting strips and the sliding cavity, conducting plates are fixedly arranged on the two conducting strips, a wire conduit is fixedly arranged between the sliding cavity and the relay box, a conducting wire is arranged in the conducting wire conduit, and a reaction mechanism is arranged in the lower wall of the determination chamber. The reaction structure is arranged at the center of the lower wall of the determination chamber, and a rotating rod is rotationally arranged on the upper wall of the shell. The conductivity of electrodes of different materials and different sizes can be detected, the conductivity of different electrodes can be compared conveniently, and a tedious conductivity determination process is avoided.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to an intelligent four-electrode conductivity sensor. Background technique [0002] An electrode is a component of an electronic or electrical device or device, which is used as the two ends of the input or output current in a conductive medium (solid, gas, vacuum or electrolyte solution); and the conductivity can be called conductivity. The product of this quantity and the electric field intensity E is equal to the conduction current density J in the medium. For isotropic media, conductivity is a scalar; for anisotropic media, conductivity is a tensor, and conductivity is a parameter used to describe the difficulty of charge flow in a substance; and a sensor is a detection device that can sense The measured information can transform the sensed information into electrical signals or other required forms of information output according to certain rules, so as to meet the requirement...

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Problems solved by technology

[0003] The existing means of comparing the conductivity of different electrodes is often to use different methods to measure the conductivity of different electrodes, and then compare them. The process is cumbersome and inefficient. At the same time, this method must be coordinated in the laboratory. The instrument detects it, and the measurement site is limited; at the same time, the existing electrodes are easily polluted by impurities when measuring the conductivity, which leads to the deterioration of the conductivity, which affects the detection results and makes the experimental data inaccurate. We propose a smart four-electrode conductivity sensor

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