Self-cleaning electrode type conductivity sensor

Abstract

The invention provides a self-cleaning electrode type conductivity sensor, and relates to the technical field of sensors. The device comprises an integrated electrode and a rotating mechanism, the integrated electrode comprises a base body, a temperature electrode is arranged at one end of the base body, an annular electrode is arranged on the outer surface of the base body, and a boron-doped diamond film layer is arranged on the outer surface of the annular electrode. One end of the rotating mechanism is rotationally connected with a first end cover, the other end of the rotating mechanism is rotationally connected with a second end cover, and the integrated electrode is arranged on the first end cover and slidably connected with the first end cover; the rotating mechanism comprises a testing cabin and a cleaning cabin fixedly connected with the testing cabin; the test cabin is of an open structure; a cleaning brush is arranged in the cleaning cabin, the temperature electrode and the annular electrode can slide into the cleaning cabin, and rotating blades are arranged outside the cleaning cabin. According to the invention, the synchronism of temperature and conductivity measurement is improved, the biological adhesion resistance of the electrode is improved, and the measurement result is accurate and reliable; in-situ cleaning of the electrode is achieved, cleaning is convenient, and the measurement precision is improved.

Description

technical field [0001] The present invention relates to the technical field of sensors, in particular to a self-cleaning electrode type conductivity sensor. Background technique [0002] Electrode conductivity measurement technology is widely used because of its advantages of high precision, small drift and no interference from electromagnetic fields. It is the main method and method of current ocean salinity measurement research. The most important measurement structure in the electrode conductivity sensor is the conductivity cell. The conductivity cell usually adopts multiple electrodes. The conductivity of the seawater is determined by measuring the resistance of the seawater between the electrodes in the conductivity cell. The conductivity cell adopts an open structure, so that the electrodes are directly exposed to the natural sea. Because the electrode of the electrode conductivity sensor has poor resistance to biological adhesion, it is easy to be polluted, which aff...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a self-cleaning electrode-type conductivity sensor, which aims to solve the problem that the poor anti-bioadhesion ability of the electrode-type conductivity sensor in the prior art makes it easy to pollute, thereby affecting the measurement accuracy of the electrode-type conductivity sensor and The electrodes of the existing electrode-type conductivity sensors need frequent manual cleaning, which increases the workload of conductivity measurement and reduces the measurement efficiency.

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