The root system of plants is not only an important part of the fixed plant body, absorbing and transporting water, mineral nutrients and organic matter, and storing and synthesizing organic matter, but also the activity of the root system will affect the physicochemical properties of the soil. Therefore, the importance of plant roots for plants and agriculture It is very obvious, and research on the morphology of plant roots is of great significance for the development of modern agriculture. Modern use of the root analyzer to take pictures of the roots of the plant roots, the use of computer vision image processing technology, the image segmentation threshold extraction and edge extraction, can be more complete extraction of plant root information and data. The root analyzer is also one of the most important scientific analytical instruments for conducting root research in modern agricultural research.

The use of a root analyzer to analyze the characteristics of a plant's root system is mainly divided into two steps. The first is image acquisition, that is, taking pictures of the plant root system. In this work, in order to highlight the morphological characteristics of the plant root system, it is necessary to adopt The background board is used to avoid background interference, and secondly, the root system of the plant is tiled on the background board so as to ensure the clarity of the collected images and the important morphological characteristics of the plant root system can be photographed.

The second is image processing. This process is mainly performed after the image acquisition is completed by using the plant root morphology image processing software. The image processing is divided into three parts, decibel is image preprocessing, morphology edge extraction and feature extraction. Here the focus is on feature extraction. Using a root analyzer to extract plant root characteristics, the length of the plant root system can be analyzed, including the total root length, average root diameter, total root area, total root volume, root tip count, and number of bifurcations. , Crossing number, root diameter grade, etc. These root feature data extracted by software can provide important scientific basis for root research. Users who have a need for root analysis can consult the sales staff of Topsun for detailed data on the functions, characteristics, parameters, and prices of the root analyzer.

Flowmeter

Plastic Flowmeter is a widely used instrument in water treatment engineering, mainly used for flow detection, usually installed after the water pump, to control the water intake of each structure, currently the most widely used are electromagnetic flowmeter and ultrasonic flowmeter. In the selection of the flowmeter, the first thing to consider is the corrosiveness of the measured medium to the flow-passing parts, so as to avoid affecting the service life of the flowmeter due to the corrosion of the medium; During the design and installation process of the flowmeter, the length of the straight pipes before and after the flowmeter needs to be considered. Usually, the principle of 5D before and 3D after the flowmeter is followed. Here, D is the inner diameter of the pipe. If the length is insufficient, the measurement accuracy will be affected. When using an ultrasonic flowmeter, the distance between the first 10D and the rear 5D must be met, and the distance from the flowmeter to the water pump must be more than 30D.

When selecting the type, the flow rate of the medium in the pipeline needs to be between the maximum value and the minimum value of the selected flowmeter, and avoid approaching the maximum or minimum value, so as to avoid affecting the measurement accuracy.

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