Miniature electrochemical sensor reference electrode potential measuring and calculating device

Abstract

The invention discloses a miniature electrochemical sensor reference electrode potential measuring and calculating device which comprises a closed shell, a reference electrode, a temperature sensor, aconductivity sensor, a measuring circuit and a working electrode. The reference electrode, the temperature sensor and the conductivity sensor are arranged in the closed shell; and the reference electrode, the temperature sensor, the conductivity sensor and the working electrode are electrically connected with the measuring circuit through connecting wires. The invention belongs to the technical field of sensors, and aims to solve the problems of low stability of reference potential, potential drift, limited service life and difficulty in direct measurement of reference electrode potential during measurement of an electrochemical sensor in the prior art. The device has the technical effects that the device solves the problem that the reference electrode of the miniature electrochemical sensor is difficult to directly measure the electrode potential, and further solves the problems that the measurement precision of the sensor is reduced and the service life of the sensor is limited dueto degradation and drifting of the reference electrode.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to a device for measuring and calculating the potential of a reference electrode of a miniature electrochemical sensor. Background technique [0002] Electrochemical sensor is a sensor based on the electrochemical properties of the analyte and converts the chemical quantity of the analyte into an electrical quantity for sensing and detection. When in use, it measures electrical signals such as potential and current generated in the target electrochemical reaction. To characterize the electrochemical properties of the analyte. [0003] Among the many sensor types, electrochemical sensors have the advantages of relatively small size, low power consumption, simple structure, and low cost. They have gradually become the focus of research and have a wide range of applications. However, it also has problems such as measurement drift, decreased measurement accuracy, and the need for regul...

AI Technical Summary

Problems solved by technology

[0041] Fourth, when performing calibration, the user is required to calibrate the reference electrode, and experiments or measurements cannot be performed at the same time

[0042] Fifth, it is difficult to adjust the sensor drive circuit or calibrate and compensate the measurement results by directly measuring the electrode potential of the reference electrode

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