Integrated Roughness Profilometer Roughness Profilometer, also known as surface roughness meter, surface smoothness meter, surface roughness tester, roughness measurement meter, roughness tester, and other names. It has the characteristics of high measurement accuracy, wide measurement range, easy operation, portability, and stable operation. It can be widely used for the detection of various metal and non-metal processing surfaces. This instrument is a pocket instrument that integrates sensors and hosts, with handheld characteristics, making it more suitable for use in production sites. The exterior design is sturdy and durable, with significant resistance to electromagnetic interference, in line with current design trends. The application fields of roughness meters include: Integrated Roughness Profilometer,Integrated Roughness Profiler, Measuring Instrument,High Speed Profilometer Zhejiang dexun instrument technology co., ltd , https://www.dexunmeasuring.com
1. Mechanical processing and manufacturing industry, mainly metal processing and manufacturing. Roughness meters were originally developed to detect the surface roughness of machined parts. Especially, stylus type roughness measuring instruments are more suitable for detecting hard metal surfaces. For example, the automotive parts processing and manufacturing industry, the mechanical parts processing and manufacturing industry, and so on. As long as these processing and manufacturing industries involve the surface quality of workpieces, the detection application of roughness meters is essential.
2. In the non-metallic processing and manufacturing industry, with the progress and development of technology, more and more new materials are applied to processing processes, such as ceramics, plastics, polyethylene, etc. Some bearings are now made of special ceramic materials, and pump valves are made of polyethylene materials. These materials have a hard texture, and some applications can replace metal materials to make workpieces. During production and processing, their surface roughness also needs to be tested.
3. With the continuous strengthening and improvement of the technology and functions of roughness meters, as well as their in-depth promotion and application, more and more industries have been found to require roughness detection. In addition to mechanical processing and manufacturing, roughness evaluation is also required in the production and processing of power, communication, electronics, such as couplings on switches, integrated circuit semiconductors, and even stationery, tableware, and other products used in people's daily lives The surface roughness of human teeth needs to be tested.
Storage and Preservation of Autumn Spinach
First, selecting the spinach: For storing autumn spinach, choose large plants with thick petioles and swollen leaves. Before storage, remove any rotten or yellowed leaves to ensure quality.
Second, digging the storage trench: Choose a high and dry area that is not prone to waterlogging. Dig trenches in an east-west direction, with a width of 1.3 to 1.5 meters and a depth of 50 to 60 centimeters. The length should be adjusted based on the amount of spinach you plan to store.
Third, harvesting and placing into the trench: Harvesting should not be done too early—ideally around mid-November. It's best to harvest in the morning, around 9 a.m., when the dew is still on the leaves. When harvesting, cut about 15 to 20 cm of the root and place the spinach in a shaded area for a short period. Once the outside temperature drops to between -4°C and -6°C, start filling the trench. Lay the spinach roots and leaves in the trench, making sure the layer is about 20 to 25 cm thick.
Fourth, management during storage: As soon as the spinach is placed in the trench, cover it with a thin layer of soil, making sure the leaves are not exposed. As the weather gets colder, gradually increase the thickness of the soil layer. Before the winter solstice, cover the spinach with 12 to 15 cm of soil, followed by another layer of 12 to 15 cm of rice husks, straw, or other insulating materials to protect against the cold.
This method ensures that the spinach remains fresh and protected throughout the winter, preserving its flavor and texture for later use. It’s a traditional technique that has been used for generations, especially in regions where winter temperatures can drop significantly. By following these steps carefully, you can successfully store your spinach for months without losing its quality.