sensor

  Air quality monitoring equipment is an instrument that can detect and analyse pollutants and harmful substances in the air.   How Air Quality Monitoring Equipment Works The core components of air quality monitoring equipment are various sensors and analytical methods that measure and calculate various parameters in the air, such as temperature, humidity, pressure, wind speed, wind direction, particulate matter, gaseous pollutants, organic compounds, heavy metals, radioactive substances, etc. The air quality monitoring equipment can also be used to assess air quality and health risks. These parameters reflect the level of pollution and health risks in the air, and can also be used to assess standards and levels of air quality. Different sensors and analysis methods have different principles and characteristics, such as chemical analysis, gravimetric, optical, electrochemical, mass spectrometry, etc., and they can be selected and combined according to different detection obj...

Before we use an instrument, it is very necessary to understand how it works, because its principle determines how it is used and some of its features. Air quality detector is a kind of instrument used to determine the quality of gas, its response speed is relatively fast, can help us know the quality of air in a certain environment in a timely manner. Since some users do not particularly understand the working principle of the air quality detector, the following is a brief introduction to you. Air quality sensor is relatively common in our daily life, it can detect formaldehyde, PM2.5, TVOC and temperature and humidity and other parameters in real time. Through the sensor on the gas concentration to play a role in detecting, can accurately measure the size of the concentration of pollutant gases, and quickly calculate the air quality index AQI, if the concentration of the current environment exceeds the standard will be immediately after the alarm.   The working principle of the a...

In the process of fish farming, there are many factors that affect the health of fish, among which the PH value of the aquaculture water is a very important factor, so specifically what are the main aspects of its impact on fish? The so-called PH value refers to the concentration index of hydroxide ions in the water body. In the process of fish farming, the main factors that affect the PH value in the water are weather, water source, light, medication, algae and organic matter in the water, etc. 1.  When the PH value is lower than 6.5, the culture water body is acidic. Acidic water will cause the fish's blood PH value to drop and the concentration of H+ ions in the blood to increase, causing acidosis in fish. It also causes the function of many enzymes in the fish as well as the function of haemoglobin and haemocyanin in transporting oxygen to become impaired, which leads to serious oxygen deprivation in fish. Acidic water is usually characteri z ed by normal levels of dissolved ox...

Dust is an open, mixed source of pollution that enters the atmosphere due to dust on the ground driven by wind, human driven and other driven flyers. It is the main pollutant of atmospheric pollution. Dust can be generated in a variety of ways. Construction dust is generated on construction sites due to excavation and transportation, removal of construction waste, burning of asphalt, etc. The composition of dust consists of three components: fallout (particle size >100µm), drifting dust (particle size 10-100µm) and respirable particulate matter (particle size <10µm).   Because of its generally small particle size, dust tends to cover the surface of plant leaves when floating in the air, preventing photosynthesis from taking place. The dust also has a large specific surface area and, when contaminated, tends to attach large amounts of toxic substances (Cr, Hg, As, etc.). This is not only very damaging to the ecosystem, but also a threat to human health.    The hazards of ...

  In winter, when flowers are more prone to frost damage, adequate light is very important for flowers and can have a significant impact on winter flowers. Adequate light conditions play a vital role in the growth of flowers.   As we all know, plants have to photosynthesise, so flowers cannot grow properly without sufficient light. Light is one of the most important influences on the growth and development of flowers, and is the key to the survival of green plants.   The light requirements of flowers are divided into species and different flowers have different light requirements. However, the intensity of light varies according to geographical location and season. The higher the latitude, the weaker the light; the lower the latitude, the stronger the light. The intensity of sunlight is higher in summer and lower in winter. Therefore, depending on the intensity of light and the need for light, flowers can be broadly classified into 3 categories: masculine, neutral and fem...

Carbon dioxide sensors are machines used to detect the concentration of carbon dioxide. Carbon dioxide is one of the raw materials for photosynthesis in green plants, and 95% of the dry weight of a crop comes from photosynthesis. Therefore, the use of carbon dioxide sensors to control the concentration also becomes an important factor in crop yield. The role of carbon dioxide sensors in greenhouses ： Greenhouse is used to cultivate plants in the facility. It can provide greenhouse fertility and increase yield in the season when it is not suitable for plant growth, and is mostly used for cultivation or seedling of temperature-loving vegetables, flowers, forest trees and other plants in the low temperature season. It is a relatively closed environment and crops are constantly photosynthesizing inside the greenhouse, therefore, the carbon dioxide concentration in the greenhouse is significantly different from the outside environment. The carbon dioxide content in the greenhouse directly ...

Temperature and humidity sensors are most widely used in numerous fields, especially in the work of recording temperature and humidity changes in real time. Temperature and humidity sensors can be managed, analyzed and summarized scientifically and effectively according to what is recorded. The type of temperature and humidity sensor chosen varies in different applications. The following are some scenarios in which temperature and humidity sensors are used. 1.Application of temperature and humidity sensor in the subway environment Subway passenger flow is high and the amount of fresh air required varies greatly. Therefore, the air conditioning load of the subway varies greatly, and energy saving must be achieved with the help of automatic control means.   In this regard, indoor temperature and humidity sensors are installed in public areas such as station concourses and platform areas, as well as in important equipment rooms, so that the real-time temperature and humidity of the s...