Haze weather is a state of air pollution. Smog is a general expression of excessive levels of suspended particulate matter in the atmosphere, especially PM2.5 (aerodynamic equivalent diameter of particles less than or equal to 2.5 microns) is considered to cause haze. The "culprit" of the weather. As the air quality deteriorates, the haze weather phenomenon increases and the damage increases. In many areas of China, the haze weather phenomenon is incorporated into the fog as a warning for severe weather warning. Collectively referred to as "smog weather." The solution to the haze weather is not one day or two. What we can do now is to reduce the emission of pollutants, predict the air quality in advance, and take precautions.
Wuhan New Puhui PH-ZDPM25(S) is a digital general particle concentration (ie ambient air quality) monitoring system that can be used to obtain the number of suspended particles in the air per unit volume of 0.3 to 10 microns, ie the concentration of particles, and It is output as a digital interface and can also output quality data for each particle to provide timely and accurate concentration data for air quality monitoring. The system complies with the national technical requirements for urban environmental air automatic monitoring system, with high degree of localization, strong practicability and ideal performance-price ratio. It can replace similar imported products and is an automatic monitoring of urban ambient air. Ideal instrument.
working principle
The sensing used in the PM2.5 monitoring station (ambient air automatic monitoring system) uses the principle of laser light scattering. That is, the laser illuminates the suspended particles in the air to generate scattering, and at the same time, the scattered light is collected at a certain angle to obtain a curve of the scattered light intensity with time. After the microprocessor collects the data, the relationship between the time domain and the frequency domain is obtained by Fourier transform, and then a series of complex algorithms are used to obtain the equivalent particle size of the particles and the number of particles of different particle sizes per unit volume.
------ Copyright (Wuhan New Puhui) Reprint, please indicate the source
Kitchen cabinets that suit you and how you use your kitchen will save time and effort every time you cook (or empty the dishwasher). We have a huge selection of cabinets, including models designed to hold appliances, so you can create your ideal layout.
Kitchen cabinet offers the perfect spot to place your microwave, while providing amble storage space underneath for a variety of items. Casters on the bottom make it easy to move the cabinet throughout the kitchen. Simply place it where you need it when you're making meals, and then push it out of the way when it's not in use. Crafted with an attractive white finish, the cabinet can serve as a small kitchen island, too. Instead of placing a microwave on top, you can also use it as a convenient prepping station. An open storage compartment offers room for kitchen essentials, bowls, spices and more. Behind the cabinet doors, you have even more space for concealing pots and pans, dinnerware or other items. The cabinet handles are made from solid wood. Easy to assemble with household tools. .
Kitchen Cabinet,Kitchen Cupboards,White Kitchen Cabinets,Modern Kitchen Cabinets
FuJian YuanFu Import&Export Trading Co., Ltd. , https://www.fjyffurniture.com