SCM-controlled (single-chip microcomputer) soil-animal separator

Abstract

The invention belongs to the field of agricultural technologies and particularly relates to an SCM-controlled (single-chip microcomputer) soil-animal separator. The SCM-controlled soil-animal separator is composed of three metallic screen mesh layers. The screen meshes are different in shape and pore shape, and the pores stagger. Each screen mesh layer is provided with certain spacing. The top of an outer cylinder is provided with a plurality of air holes. A temperature control is controlled through an SCM; actually measured temperature is compared to set temperature through the SCM; thyristor operating angle is controlled so as to control the power of an incandescent lamp and control the temperature of a separator soil sample. The SCM-controlled soil-animal separator has the advantages that the problems that the pore diameter of the separator screen meshes is either too large or too small, liquid in a collector overflows and temperature is either too low or too high are solved, the power of a light source can be conveniently changed according to difference in soil sample thickness and humidity, with no need of changing incandescent lamps different in watt level or adjusting height between the lamp source and the soil sample, optimal temperature is set more accurately, and the optimal effect is achieved.

Description

technical field [0001] The invention belongs to the technical field of agriculture, and in particular relates to a soil animal separator controlled by a single-chip microcomputer. Background technique [0002] There are tens of thousands of soil animals living in the soil. They are an important part of the soil ecosystem. They participate in the decomposition of biological residues, change soil properties, and affect the formation and development of soil and the material cycle and energy of the ecosystem. Mobility matters. At the beginning of the 20th century, the Italian scholar Berlesc invented the insect drying funnel, which was improved by Tullgren and widely used. It is called the Tullgren method or the dry funnel method. Mainly used for body length 0.2 ～ Separation and extraction of small and medium soil fauna up to 2 mm. At present, scholars at home and abroad mostly use the Tullgren method to separate and extract small and medium-sized soil animals. However, the ...

AI Technical Summary

Problems solved by technology

[0007]1. Solve the problem that the separator adopts a single-piece structure, the large sieve hole is easy to leak soil, the separation effect is not good, and the separation may even fail; The diameter of the sieve hole is smaller than the scale of the soil animal itself, and the soil animal cannot pass through. The second is that the diameter of the hole is small, and it is easy to be blocked by sand and soil, and the problem that the soil animal cannot be separated may also occur.

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