Probe ageing test device and method for three-electrode conductivity sensors

Abstract

The invention discloses a probe ageing test device and method for three-electrode conductivity sensors. The probe ageing test device comprises a control box, a sea water tank and a fresh water tank, wherein a plurality of probes are connected in series through a pipeline and form an ageing test pipeline; a suction pump is arranged at an entrance of the ageing test pipeline, and normally closed electric valves are arranged at all branches of the entrance; an exit is divided into two exit branches, and normally closed electric valves are arranged at both branches of the exit; the control box is connected with and controls the suction pump and the normally closed electric valves, and is further provided with a probe connecting line to be connected with the to-be-aged probes. Through automatic and precise control of a conductivity sensor probe ageing test process, multiple conductivity probes are subjected to an ageing test simultaneously, the labor cost of the ageing test is reduced, and the consistency of the ageing test is improved.

Description

technical field [0001] The invention belongs to the field of marine instrument production, and in particular relates to a three-electrode conductivity sensor probe aging test device and a using method thereof. Background technique [0002] With the progress and development of society, the ocean plays an increasingly important role in people's lives, and the salinity information of seawater is an important element for studying the ocean. At present, salinity information is obtained by measuring the conductivity of seawater and then calculating it through standard formulas. Therefore, conductivity sensors are an important means of studying the ocean. [0003] At present, the commonly used conductivity sensor at home and abroad is a three-electrode structure such as figure 1 As shown, the probe part is mainly composed of a slender glass tube a and three platinum electrodes b. In order to reduce the polarization effect near the electrodes and ensure the measurement accuracy, th...

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Problems solved by technology

[0006] In order to solve the problem of high labor cost due to the complexity of the aging experiment process of the conductivity sensor probe and the inability to ensure the consistency of the aging experiment, the present invention provides a three-electrode conductivity sensor probe aging experiment device, which aims at aging the conductivity sensor probe The automatic and precise control of the experimental process enables multiple conductivity probes to conduct aging experiments at the same time to reduce the labor cost of the aging experiment and improve the consistency of the aging experiment

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