Method and device for detecting elasticity modulus of corn stalks

Abstract

The invention relates to a method and a device for detecting the elasticity modulus of corn stalks, which belong to the technical field of modern agricultural equipment. The invention adopts a cantilever beam as a theoretical model, external force is horizontally applied to corn stalks with fixed roots, and the calculation formula of the elasticity modulus of the stalks is calculated according torelevant mechanical principles; according to the measurement principle, a relevant measurement device is designed; and during measurement, the external force with a horizontal action is applied to the corn stalks by a push rod, the corn stalks are bent, the applied external force is transformed by a sensor, an automatic display instrument and the like to display the numerical value of the elasticity modulus of the corn stalks, and the numerical value of the stress intensity of the corn stalks obtained by measurement can be used as one parameter for a corn seed breeding expert to select and breed high-quality corn. The invention has simple operation, scientific measurement principle, reliable measurement result, simple structure and low production cost.

Description

technical field [0001] The patent of the invention relates to a method and device for detecting the elastic modulus of corn stalks, belonging to the technical field of modern agricultural equipment. Background technique [0002] Among the various food crops in the world, the planting area of ​​corn ranks third, second only to the planting area of ​​wheat and rice. In my country, corn is one of the three major grain varieties in my country, and its output accounts for about a quarter of the country's total grain output. The proportion of corn production in the total grain output has increased from 18% in the early 1980s to nearly 27% in the late 1990s, so corn production is the most active factor in my country's grain production. In recent years, the planting of corn has developed rapidly in many areas, and has played an important role in increasing grain production and improving farmers' income. But in recent years, with the rapid development of agricultural productivity a...

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Problems solved by technology

At present, the equipment that can detect the elastic modulus of straw at home and abroad is only at the level of large-scale equipment in the laboratory, and there is no instrument that can directly measure the elastic modulus in the test field.

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