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 right spinach: Choose large, healthy spinach plants with thick petioles and well-developed leaves. Before storage, remove any damaged, yellowed, or rotting leaves to ensure only the best quality is kept.
Second, digging the storage trench: Select a high, dry, and sheltered area for digging. The trench should be oriented east to west to maximize sunlight exposure. The width should be between 1.3 to 1.5 meters, and the depth around 50 to 60 centimeters. The length can vary depending on the amount of spinach you plan to store.
Third, harvesting and placing in the trench: Harvest spinach at the right time—usually around mid-November. It's best to harvest in the early morning, around 9 a.m., when the dew is still present. When cutting, leave about 15 to 20 centimeters of the root. After harvesting, place the spinach in a shaded area to slightly wilt before storing. Once the outside temperature drops to between -4°C and -6°C, it's time to start placing the spinach in the trench. Lay the roots and leaves in layers, keeping each layer about 20 to 25 centimeters thick.
Fourth, managing the storage: As soon as the spinach is placed in the trench, cover it with a thin layer of soil, making sure not to expose the leaves. As temperatures drop further, gradually add more soil to insulate the plants. Before the winter solstice, cover the spinach with a 12 to 15 centimeter layer of soil, followed by another 12 to 15 centimeters of protective material such as rice husks, straw, or leaves to provide extra cold protection. This method helps maintain the quality and freshness of the spinach throughout the winter months.