Conductivity temperature sensor system

Abstract

The invention provides a conductivity temperature sensor system comprising a substrate comprising N + 2 through holes, each through hole is provided with a wire, the first end of each wire is connected to the bottom surface of the substrate, the N + 2 through holes comprise N first through holes and two second through holes, and N is a positive even number; the conductivity sensor comprises N electrodes which are correspondingly arranged on the N first through holes respectively and connected with the second ends of the wires in the first through holes respectively, the N electrodes comprise a circular electrode and N-1 annular electrodes, and isolation trenches are formed among the N electrodes; the temperature sensor is located in the isolation trench, and two electrodes of the temperature sensor are arranged on the two second through holes respectively and connected with the second ends of the wires in the second through holes respectively.

Description

technical field [0001] The present disclosure relates to the technical field of sensors, in particular to a conductivity temperature sensor system. Background technique [0002] The conductivity temperature sensor system can not only directly and quickly provide the most basic parameters of conductivity and temperature ocean, but also calculate important information such as seawater salinity according to the relationship between conductivity and temperature compensation, and these parameters and information are very important for marine scientific research, marine The fields of environmental protection, marine economy, marine military and marine defense all have extremely important values. [0003] The electrode type conductivity sensor is based on the principle of electrolytic conductivity. The conductivity is calculated by measuring the resistance of the measured seawater between the electrodes. It is mainly divided into four main forms: two electrodes, three electrodes, f...

AI Technical Summary

Problems solved by technology

[0004] When the annular four-electrode conductivity sensor and temperature sensor in the prior art are integrated together, the occupied area is relatively large, which is not conducive to integration

On the other hand, some annular four-electrode conductivity sensors adopt the design of the notch so that the electrodes located inside can draw wires from the notch to electrically connect with other components, but the setting of the above-mentioned notch will destroy the integrity of the ring electrode, so that in the Singular points will appear on the equipotential surface of the voltage electrode during measurement, which will cause any slight changes on the electrode such as pollution and biological adhesion, which will cause a large deviation of the measurement signal and affect the accuracy and stability of the measurement

At the same time, these ring-shaped four-electrodes are made of metal platinum, which has the problem of low mechanical strength, and it is difficult to achieve long-term stable conductivity measurement.

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