Full-automatic soil PH measurement instrument and method

Abstract

The invention relates to a full-automatic soil PH measurement instrument, which comprises a detection container, a liquid adding unit, a magnetic stirring unit for stirring the liquid in the detectioncontainer, a PH detecting electrode, an electrode cleaning and drying unit for cleaning and drying the PH detecting electrode, an XYZ three-axis mobile platform and a control unit. The magnetic stirring unit, the electrode cleaning and drying unit and the XYZ three-axis mobile platform are electrically connected with and is controlled by the control unit. The liquid adding unit comprises a liquidadding head for adding liquid into the detection container. The liquid adding head and the PH detecting electrode are driven to move by the XYZ three-axis mobile platform. The full-automatic soil PHmeasurement instrument and method realize full-automatic detection of the samples and batch detection of the samples, are short in batch detection time, and require no additional manual intervention in the detection process, thereby greatly improving detection efficiency and saving labor.

Description

technical field [0001] The invention relates to the technical field of soil pH detection, in particular to a fully automatic soil pH measuring instrument and method. Background technique [0002] The measurement of soil pH value refers to the use of water as the extraction agent, mixing according to a certain water-to-soil ratio, and when the pH measuring electrode is immersed in the soil suspension, a primary battery is formed. At a certain temperature, its electromotive force and the pH of the suspension The value is related, and the soil pH value is calculated by measuring the electromotive force of the primary battery. [0003] Measuring instruments in the prior art generally use a simple PH meter with a magnetic stirrer, and can only measure a single sample at a time. Due to the long time of stirring and standing in the soil pH measurement process, and the measurement between different samples requires manual Replacement, manual electrode cleaning and electrode drying ...

AI Technical Summary

Problems solved by technology

[0003] Measuring instruments in the prior art generally use a simple PH meter with a magnetic stirrer, and can only measure a single sample at a time. Due to the long time of stirring and standing in the soil pH measurement process, and the measurement between different samples requires manual Replacement, manual electrode cleaning and electrode drying steps are inefficient and labor-intensive

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