A New Penetrating Online Soil pH Sensor

Abstract

The invention discloses a novel osmotic on-line soil pH value sensor, which relates to the field of soil science research and includes a soil solution filter, a transmitter is fixedly connected to the middle part of the upper surface of the soil solution filter, and an upper surface of the soil solution filter There are soil solution collection ports on both sides of the surface, stainless steel filter screens are fixedly connected to both sides of the inner top wall of the soil solution filter, and a coarse-grained quartz sand layer is fixedly connected to the inner bottom wall of the soil solution filter. The upper surface of the layer is fixedly connected with a partition, the upper surface of the partition is fixedly connected with a fine-grained quartz sand layer, and the middle part of the lower surface of the soil solution filter is fixedly installed with a solution collection cylinder. The invention realizes the real soil direct burial measurement, and can observe the soil pH information online for a long time. Compared with the traditional laboratory method of taking soil and extracting the soil solution for measurement, the measurement efficiency is greatly improved, and the measurement accuracy is not significantly reduced. .

Description

technical field [0001] The invention relates to the field of soil science 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 using the industrial composite pH electrode directly buried in the soil. Although the measurement of the soil extraction solution in the laboratory has high precision, the test period is long and the efficiency is low, so it cannot be realized online. Real-time monitoring and parameter control, but the use of industrial pH electrodes directly buried in the soil for measurement can only measure the pH when the soil 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 extremely easy to damage, the life is very short, and has no practical applic...

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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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