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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...

The second factor affecting gas sensor readings is ambient temperature and humidity. Most gas sensors are sensitive to changes in ambient temperature. This is because performance parameters of chemical reactions, electronic components, and inorganic or organic materials change with temperature. This ultimately leads to changes in the current and voltage output by the sensor.   What Are the Operating Temperature Ranges of Different Sensors? Non-dispersive infrared sensors (NDIR): NDIR sensors...

An infrared sensor is a common electronic device used to detect and receive infrared radiation. They are widely used in remote control, security monitoring, thermal imaging and other fields. This article will introduce the working principle of infrared sensor and its different types. Working Principles of Infrared Sensor The working principle of infrared sensors is based on the propagation of infrared radiation and its interaction with objects. Infrared radiation is a kind of electromagnetic...

When installing a CO2 (carbon dioxide) monitoring system, proper equipment placement is critical to ensure the integrity of system functionality and the safety of employees. Careful consideration needs to be given to planning the location of the system, the layout of the wires, and the protection of the equipment, and staff should be trained on what to do when they hear an alarm. The CO2 sensor should be installed 12 inches (31 cm) above the ground, and the display of the CO2 monitoring system should...

What factors affect the reading of the gas sensor? This seemingly common problem actually involves a great deal of underlying principles and covers a broad range of topics. When encountering inaccurate gas meter readings, many customers immediately suspect sensor failure. This is not surprising, as gas sensors are not perfect and can indeed experience problems. When faced with such issues, various factors must be checked systematically to identify and resolve the root cause. Avoid prematurely concluding...

In today's automotive industry, the rapid development of technology not only significantly improves driving safety and comfort, but also adds a variety of intelligent functions to respond to different driving environments and needs. As a key technical device, oxygen sensor is of great significance and broad application prospect in automobile oxygen detection system, especially for tired driving and plateau travel. The Basic Function and Principle of Oxygen sensor An oxygen sensor is a device...

The existing laser dust sensor used in the coal mine safety monitoring system consumes a large amount of power and cannot effectively transmit data over long distances. Based on the principle of laser dust monitor measurement, this paper designs a laser particle sensor with the main features of low power consumption, long transmission distance, and accurate measurement. It meets the various technical requirements of the coal mine safety monitoring system after upgrading and transformation...

Fresh, clean air is essential for good health. However, indoor air can quickly become stale due to the accumulation of carbon dioxide (CO2) in people's breath. As carbon dioxide levels rise, the potential for pathogens and pollutants increases, causing potential health problems such as dizziness, headaches, and fatigue. According to a study by the Center for Air Infiltration and Ventilation, carbon dioxide levels are a reliable indicator of overall air quality. CO2 sensors play a vital role...

What is an Air Quality Sensor? An air quality sensor is a device used to detect the concentration of pollutants in the air. It can usually measure two or more air quality indicators such as temperature, humidity, carbon dioxide, carbon monoxide, ozone, formaldehyde, benzene, PM2.5, and PM10. It is an important part of air purifier and fresh air system. What is the Measurement Range of Air Quality Sensors? Air quality sensors can usually measure particulate matter such as pm1, pm2.5, pm10, various...