Detection device and method for electrical conductivity of soil

Abstract

The invention discloses a detection device and method for the electrical conductivity of soil. The method comprises the following steps: testing the soil with known electrical conductivity, and determining the constant of the electrical conductivity; inputting an electrical excitation signal into soil to be detected, collecting a first-path feedback voltage signal and a second-path feedback voltage signal, and converting the first-path feedback voltage signal and the second-path feedback voltage signal into a first-path direct-current voltage signal and a second-path direct-current voltage signal; obtaining the electrical conductivity of the soil to be detected under the farmland environment according to the average value of the first-path direct-current voltage signal and the second-path direct-current voltage signal and the constant of the electrical conductivity. The method obtains a more accurate direct-current voltage signal of the soil to be detected according to the average value of the first-path direct-current voltage signal and the second-path direct-current voltage signal of the soil to be detected, so that the detection precision is improved; the electrical conductivity of the soil to be detected under the farmland environment is obtained according to the direct-current voltage signals and the constant of the electrical conductivity. The method can be used for detecting the electrical conductivity of multilayer soil in multiple areas, and the detection efficiency and the detection precision are effectively improved.

Description

technical field [0001] The invention relates to the technical field of conductivity detection, in particular to a soil conductivity detection device and method. Background technique [0002] In order to obtain higher yields in farmland, reasonable management is very critical. The key to farmland management is: fertilization, irrigation and so on. Now the management of farmland mainly depends on the experience of managers, which is very subjective. In order to increase production, some managers overuse pesticides and chemical fertilizers, causing waste and polluting the environment. Using this system to obtain farmland information, and then guide farmland management, has a positive effect on saving costs, increasing production, and protecting the environment. [0003] The measurement of soil conductivity in the prior art is to directly measure the conductivity of the soil in the farmland environment. Due to the complexity of some farmland environments, the measurement resu...

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Problems solved by technology

[0003] The measurement of soil conductivity in the prior art is to directly measure the conductivity of the soil in the farmland environment. Due to the complexity of some farmland environments, the measurement results are not accurate enough, and the measurement process of the laboratory measurement method is complicated, time-consuming, and costly. Meet the needs of large area measurement

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