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Total Volatile Organic Compounds (TVOC) play a critical role in assessing indoor air quality, posing significant health and environmental risks. Understanding TVOCs is vital for creating safe, healthy living and working environments. This article explores the definition of TVOC, methods for measuring its levels, and effective strategies for reducing its presence indoors. What is TVOC? TVOC stands for Total Volatile Organic Compounds, encompassing a broad spectrum of organic chemicals. These compounds...

Abstract: The mining laser dust sensor is developed based on the light scattering principle. It features high detection accuracy, a long service life, and stable, reliable performance, particularly in nonlinear signal processing and signal filtering. It possesses outstanding characteristics, and the sensor's design scheme is elaborated in detail.   Coal is a pillar industry for the development of the national economy in China. As a non-renewable resource, coal accounts for 70% of the...

The optimal operating environment for laser sensors is affected by several key factors, including visibility, optical interference, and environmental conditions. These sensors use the signal return strength of the laser beam to accurately identify the target, and therefore perform well in a variety of applications. But to achieve the best performance, choosing the right working environment is crucial. The following are the ideal working conditions of laser sensors and the coping strategies under...

A sensor is a device that can sense and respond to changes in the external environment, and its role is to convert phenomena in the physical world into readable signals. The input can be a physical parameter such as light, heat, motion, moisture, pressure, etc. The sensor converts this information into an electrical signal or other processable form and then outputs it to a display or computer system. This data can be used for real-time monitoring, automated control, and data analytics to support...

Gas is a fluid, and its flow is caused by a pressure difference. The larger the pressure difference is, the higher the flow rate becomes. For gas sensors, what matters is not the total pipeline flow rate but the flow rate near the sensor’s air inlet. The cavity volume near the sensor’s air inlet is generally less than 10 ml. Therefore, the recommended flow rate is usually measured in ml/min. When discussing flow, it's important to explain two ventilation modes: diffusion...

In modern cars, tiny sensor assemblies are tasked with collecting and transmitting critical data to the onboard computer, which is crucial to keeping the drive smooth and safe. However, things can get complicated when there are problems with these sensors. This blog post will delve into automotive sensor technology, analyzing common types, causes of failures, and how to fix them, making it a must-read for every car owner. Common Sensor Types and Their Functions Engine control Unit (ECU) Sensor A...

With the development of air quality monitoring technology, small, low-cost and portable air sensors have been widely used in various environments. These sensors play an important role in monitoring indoor and outdoor air quality, especially in areas with frequent air pollution events, such as wildfires. However, just choosing the right sensor is not enough, how to choose the right placement is also critical, because the location of the sensor directly affects the accuracy and validity of the data....

Dust is ubiquitous in constant activity on construction sites, in vibrating equipment running in manufacturing plants, and even in office environments where paper and machines coexist. These particles, which range in size from micrometers to visible to the naked eye, are produced in a variety of processing processes, such as material stacking, wood carving and plastic molding. The particulate matter released by these activities forms part of the air in our working environment. As a result, particulate...

Formaldehyde is a common volatile organic compound (VOC) and has attracted much attention due to its wide application in various industrial and household products. As a chemical that easily evaporates into a gas at room temperature, volatile organic compounds cause indoor air pollution and pose a potential threat to human health. Among these compounds, formaldehyde is particularly noteworthy for its wide range of uses and potential harm. Therefore, it is particularly important to use a special gas...