Method for measuring pulling resistance and tensile breaking strength of plant and device

Abstract

The invention discloses a method for measuring the pull-out resistance and the tensile strength of a plant. The method comprises the following steps: measuring the no-load current of a driving motor with a hall current sensor; binding the plant to be measured with twine connected with a driving motor; measuring the working current of the driving motor in the plant drawing state with the hall current sensor until the plant is pulled out or snapped, and measuring change curve of the working current during the pulling or snapping process; measuring the change curve of the load current according to the difference value between the working current and the no load current; converting the change curve of the load current into the change curve of the pulling force during the pulling and snapping process of the plant, and measuring the pull-out resistance of the plant. The invention also discloses a device for measuring the pull-out resistance and the tensile strength of the plant. The method and the device can overcome the default of the traditional measuring method and device on the precision, the price and the applicability, and provide a reliable way for the research of the soil-fixation essence of the plant and greening projects.

Description

technical field [0001] The invention relates to the field of measuring the mechanical properties of plant roots, in particular to a method and a device for measuring the pull-out resistance and tensile strength of plants. Background technique [0002] Vegetation can be used for desert control and ecological restoration. Its functions in soil stabilization and sand prevention, improvement of soil erosion resistance, stabilization of soil structure, stabilization of slopes, and soil and water conservation have gradually been recognized by people. The plant root system is an important organ of the plant to fix soil. Understanding and clarifying the mechanical properties of the plant root system and its soil-strengthening mechanism and revealing its soil-fixing nature are of great significance to both basic scientific research and greening projects. [0003] At present, the research on the mechanical characteristics of plant roots and their soil-fixing mechanism is still in its ...

AI Technical Summary

Problems solved by technology

This method begins to pull the plants when the motor is started and has not yet reached a stable operation. The measured pulling force value is not accurate, and the price of the pulling force sensor with high precision is relatively high, which greatly increases the development cost of the entire system.

Images