Device and method for detecting content of glutamic acid of tomato leaves by multi-angle in-situ spectrum

Abstract

The invention relates to the technical field of spectrum detection, and particularly relates to a spectrum device and a method for detecting the content of glutamic acid of tomato leaves in a tomato planting field. The device comprises a spectral probe, a light source, an omnibearing rotator and a light insulation device, wherein the omnibearing rotator comprises an arc suspending plate, an annular rail plate, an electric driving roller and supporting pins. The method comprises the following steps: (a) preparing equipment; (b) correcting a spectral whiteboard; (c) automatically adjusting and sampling the angle of leaf spectrum; (d) sampling multiple spots of the leaf spectrum; and (e) calculating the physical and chemical value. The device is arranged in the tomato planting field so as to acquire the spectral data of the content of glutamic acid of living tomato leaves; the tomato leaves can be detected in an omnibearing manner; and the electric driving roller automatically rotates, and a camera is simultaneously matched for observing and monitoring, so that the detection efficiency is high.

Description

technical field [0001] The invention relates to the technical field of spectral detection, in particular to a spectral device used for detecting the glutamic acid content of tomato leaves at the tomato planting site. Background technique [0002] Tomato fruit contains a lot of nutrients such as carbohydrates, proteins, amino acids, vitamins and inorganic salts. Therefore, tomatoes are very popular among ordinary people in our country, and the annual output is very large. During the growth of tomato plants, the amino acid content in the leaves is a very important physiological indicator in the growth process of tomato. Glutamic acid is one of the basic amino acids for nitrogen metabolism in living organisms, and it is of great significance in metabolism. Monitor the glutamic acid content index during the tomato growth process, analyze the reasons for the changes in the glutamic acid content index, provide a basis for tomato planting decisions, and provide scientific basis fo...

AI Technical Summary

Problems solved by technology

The use of chemical determination methods is time-consuming and laborious, requires more labor costs, and the analysis process has more mechanical operations, and is generally not suitable for analyzing a large number of samples; chemical analysis requires the use of chemical reagents, which will inevitably pollute the environment. Due to the accuracy of data, convenient operation and environmental protection and pollution-free characteristics, the use of spectroscopy technology to replace conventional chemical analysis methods has been applied to a certain extent

[0004] like figure 1 As shown, due to the different growth shapes of tomato leaves, the on-site measurement has high requirements on the projection angle of the light source and the incident angle of the spectral probe. Leaf deterioration affects the accuracy of glutamic acid spectral measurement, which requires high real-time measurement of glutamic acid content

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