Novel penetration type on-line soil pH value sensor

Abstract

The invention discloses a novel penetration type on-line soil pH value sensor and belongs to the field of soil science research. The novel penetration type on-line soil pH value sensor comprises a soil solution filter; the middle of the upper surface of the soil solution filter is fixedly connected with a transmitter; soil solution collection openings are formed in two sides of the upper surface of the soil solution filter; two sides of the inner top wall of the soil solution filter are fixedly connected with stainless steel filter screens respectively; the inner bottom wall of the soil solution filter is fixedly connected with a coarse particle quartz sand layer; the upper surface of the coarse particle quartz sand layer is fixedly connected with a partition plate; the upper surface of the partition plate is fixedly connected with a fine particle quartz sand layer; and the middle of the lower surface of the soil solution filter is fixedly provided with a solution collecting cylinder.With the novel penetration type on-line soil pH value sensor of the invention adopted, soil direct burial measurement in the true sense is realized; and soil pH value information can be observed on line for a long time. Compared with a traditional method in which laboratory soil sampling, soil solution extraction and measurement are carried out sequentially, the novel penetration type on-line soilpH value sensor is greatly improved in measurement efficiency with measurement precision not obviously reduced.

Description

technical field [0001] The invention relates to the field of soil scientific research, in particular to a novel permeable online soil pH sensor. Background technique [0002] The existing technology generally adopts the method of extracting the soil solution in the laboratory, or the temporary measurement method of directly burying the soil in the industrial composite pH electrode. Although the laboratory measurement of the soil extract has high accuracy, the test cycle is long and the efficiency is low, and it is impossible to achieve online Real-time monitoring and parameter control, while the industrial pH electrode is directly buried in the soil for measurement, can only measure the pH of the soil when it is saturated with water, and due to the large amount of impurities in the soil and the lack of water during drought, the measurement error will be very large. And the electrode is easily damaged, the life is very short, and has no practical application value; [0003] ...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a novel osmotic on-line soil pH value sensor to solve the problem that although the existing soil measurement method proposed in the above-mentioned background technology has high precision, the test period is long and the efficiency is low, and it is impossible to realize online real-time monitoring and The problem with parameter control

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