Stroma moisture and conductivity in situ detector and method for determining salinity

Abstract

The invention discloses a stroma moisture and conductivity in situ detector and a method for determining salinity. The detector comprises an integrated electrode sensor probe (1), a sensor signal conditioning circuit (2) and a signal processing control unit (3), wherein the integrated electrode sensor probe (1) is formed by a probe (11), a probe (12), a probe (13) and a probe (14) with space of 20mm; the integrated electrode sensor probe (1) and the sensor signal conditioning circuit (2) are encapsulated in a shell (4) in an insulating manner; the signal processing control unit (3) is encapsulated in a shell (5); and the shell (4) and the shell (5) are connected by a group of cables (6). The detector and the method have the following beneficial effects: the structure is simple; manufacturing is convenient; multiple parameters can be simultaneously measured; and the measuring results are more accurate and the adaptability is stronger.

Description

technical field [0001] The invention relates to a matrix multi-parameter in-situ detector, in particular to an in-situ detection technology for matrix humidity and conductivity parameters and a method for determining matrix salinity, which belongs to the field of testing technology and is mainly used for in-situ detection of matrix physical and chemical properties in the process of soilless cultivation . Background technique [0002] Substrate humidity, that is, the water content in the substrate, is the most important and commonly used information of the substrate; the substrate conductivity contains rich information on the nutrients and physical and chemical properties of the substrate, and can reflect the salt content, moisture, organic matter content, organic substrate texture structure and The size of parameters such as porosity; the salt content of the substrate is a physical parameter of the substrate, which is of great significance to plant growth, and the salinity s...

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Problems solved by technology

[0006] The purpose of the present invention is to make up for the lack of current matrix in-situ detection instruments, and overcome the problems and deficiencies of the above-mentioned soil detection instruments such as single function, high price, and poor adaptability, and disclose a small volume and high cost performance suitable for my country's current matrix cultivation. Existing portable matrix humidity, electrical conductivity in-situ detector; Another object of the present invention is to provide a kind of measurement result more accurate, the method that this in-situ detector with stronger adaptability is used for the determination of salinity

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