The cultivation techniques of broad bean sprouts in early spring

First, for prenatal preparation, choose a warm and shaded area, away from direct sunlight. You can use discarded food containers, plastic bags, or any clean, sturdy containers. Cover the containers with clean towels, gauze, or cloth to maintain humidity and protect the seeds during the initial stages. Second, before planting, it's important to disinfect all containers and tools. You can do this by scalding them in hot water for 15 to 30 minutes, then letting them dry completely. Alternatively, you can soak them in a dishwasher disinfectant for about 10 minutes, followed by a thorough rinse with clean water to remove any residue. Third, when selecting the seeds, opt for varieties with thick skins and a 1000-seed weight of over 700 grams. Choose high-quality seeds that are fully mature, plump, free from pests, and have a high germination rate and purity. It's best to use fresh seeds that have not been stored for too long to ensure the best results. Fourth, after thoroughly washing the broad beans, soak them in water at 60°C for 10 minutes to soften the outer layer. Then transfer them to cold water and let them soak for 30 hours. Make sure to change the water every 5-6 hours to prevent spoilage. After soaking, rinse the beans thoroughly to remove any sticky substances or dirt, then drain them well. Fifth, place the soaked broad beans into a growing container and cover them with gauze or a clean towel. Store the container in a dark, cool, and moist environment. After 6 hours, add water to the container until it covers the beans completely. Let them sit for 2-3 minutes, then tilt the container and pour out the water. Repeat this process twice to ensure even hydration, then drain the water and re-cover the beans with the towel or gauze. Sixth, harvest the sprouts when they reach about 1 cm in length. At this stage, the sprouts are at their peak in terms of nutrition and quality, making them ideal for consumption. Be sure to wash them again before using to ensure cleanliness and freshness. This method ensures a safe, healthy, and efficient way to grow bean sprouts at home.

Roundness Tester

A roundness tester is a measuring tool that uses the rotation axis method to measure the roundness error of a workpiece. The roundness tester is divided into sensor rotary and workbench rotary. During measurement, the measured part is installed concentric with the precision shaft system, and the precision shaft is equipped with an inductive length sensor or workbench for precise circular motion. The roundness meter consists of an instrument's sensor, amplifier, filter, and output device. If the instrument is equipped with a computer, the computer is also included in this system.

A roundness tester is a precision instrument used to measure the out-of-roundness of a rotating surface (shaft, hole, or spherical surface) of a component. There are usually two types: small desktop, where the workpiece is mounted on a rotating workbench and the measuring head is mounted on a fixed column; and Large floor mounted, with the workpiece installed on a fixed workbench and the measuring head installed on the rotating spindle. During measurement, the measuring head contacts the workpiece's surface, and the instrument's rotating part (workbench or spindle) rotates for one cycle. Due to the extremely high accuracy of the supporting bearings in the rotating part, the measuring head will generate a high-precision circular trajectory on the measured surface during rotation. The out-of-roundness of the measured surface causes the measuring head to shift and transform into an electrical (or pneumatic) signal. After amplification, it can be automatically recorded on a circular recording paper, and the out-of-roundness of each part can be directly read out for accuracy evaluation and process analysis and widely used in precision bearings, machine tools, and instrument manufacturing industries.

The Roundness Testeradopts a radius measurement method and operates in a rotating manner. The rotation axis system of the roundness meter adopts a high-precision air floating spindle as the measurement reference; The electrical part of the roundness tester is composed of advanced computers, precision circular grating sensors, and precision inductance displacement sensors. The circular grating sensors and precision inductance displacement sensors measure angle and radial displacement, ensuring the accuracy of measuring the angular displacement and radial value of the workpiece; The roundness meter measurement software adopts a roundness measurement software based on the Chinese version of WinXP operating system platform, completing data collection, processing, and measurement data management.

China Roundness Measuring Instrument,Roundness Tester Machine,Mitutoyo Roundness Tester Manufacturer

Zhejiang dexun instrument technology co., ltd , https://www.dexunmeasuring.com