- Infrared working principle
- High sensitivity, low power consumption
- Small size and high precision
- Built-in temperature compensation
- Support serial-port (UART), PWM etc output methods
What is the gas sensor?
Gas sensor use specific physical and chemical effects to convert the composition and concentration of various gases into standard electrical signals. They are commonly used in industrial settings, such as factories and power plants, as well as in consumer products like home air quality monitors. Gas sensor can detect a wide range of gases, including carbon monoxide, methane, and propane, and they can be designed to operate in different environments and at different temperatures.
How does a gas sensor work?
Gas sensors works by measuring the concentration of a specific gas in the air. This is typically done using a sensor, which is a device that can detect the presence of a gas and convert that detection into an electrical signal. The sensor may use a variety of techniques to detect the gas, such as absorption, adsorption, or chemical reaction. The electrical signal from the sensor is then processed and analyzed to determine the concentration of the gas. Different types of sensors are available for different types of gases and different applications.
Where are gas sensors used?
Gas sensors are used in a wide variety of applications, some of the most common include:
- Medical Applications: Gas sensor can be used to monitor the content of gases such as carbon dioxide and oxygen in the blood to ensure normal respiratory function.
- Automotive Applications: Gas sensor is used in cars and other vehicles to monitor pollutant levels in exhaust gases and help control emissions.
- Industrial Monitoring and Control: Gas sensor is used in industrial environments to monitor and control the levels of gases such as carbon monoxide, methane and oxygen to ensure safety and compliance with regulations.
- Environmental Monitoring: Gas sensor can be used to measure the content of pollutants and greenhouse gases in the atmosphere to monitor and understand the impact of human activities on the environment.
- Home and Building Automation: Gas sensor is used in homes and buildings to detect gases that are a potential safety hazard, such as carbon monoxide and natural gas.
- Agriculture and Food Industry: Gas sensor is used to monitor the levels of gases such as carbon dioxide and oxygen in greenhouses and storage facilities to ensure optimal growing conditions and preservation of food.
- Research and Development: Gas sensor is used in scientific research to study the composition of gases in the environment and to develop new technologies for gas sensing.
How many gas sensors are there?
There are many types of gas sensors, and the number of specific models available can vary depending on the manufacturer and application. Some common types of gas sensors include those used to detect carbon monoxide, methane, propane, and oxygen. Additionally, there are sensors that detect Multiple gases, such as multi-gas sensors.
Do gas sensor detect CO2?
Yes, gas sensor can be used to detect carbon dioxide (CO2). CO2 is a commonly used measurement gas in various applications such as industrial monitoring, environmental monitoring and building automation.
CO2 measurement is critical in many applications such as indoor air quality, ventilation systems and greenhouse gas monitoring. CO2 sensors are commonly used in buildings to monitor and control CO2 levels and ensure proper ventilation to monitor CO2 levels in greenhouses and storage Facilities to ensure optimal growing conditions and to monitor atmospheric CO2 levels for environmental research and monitoring.
Different types of gas sensors can be used to detect CO2, such as:
- Non-dispersive infrared (NDIR) sensors – Use infrared light to detect CO2 by measuring the absorption of infrared light by CO2 molecules. NDIR sensors are very accurate and can be used in a wide range of applications.
- Metal Oxide Semiconductor (MOS) Sensors – Use a metal oxide layer to detect CO2. They are sensitive to carbon dioxide and other gases such as methane, propane and ethane.
- Electrochemical sensors – Use an electrochemical reaction to detect CO2 by measuring the change in electrical current caused by the presence of CO2.
- Optical sensors – Use the absorption or fluorescence of light to detect CO2. They are sensitive to CO2 and other gases such as methane, propane, and ethane.
- Solid-state sensors – Based on the change of electrical or physical properties of a material due to the presence of CO2.
What does a CO2 sensor detect?
A CO2 sensor is used to detect the concentration of carbon dioxide (CO2) in the air. CO2 is a naturally occurring gas that is present in the Earth’s atmosphere and is also a byproduct of human activities such as burning fossil fuels and respiration.
CO2 sensors work by measuring the concentration of CO2 in the air and providing an electrical output that corresponds to the concentration of CO2. The sensor can detect a wide range of CO2 concentrations, from very low levels in outdoor environments to much higher levels in enclosed spaces such as buildings, greenhouses, and storage facilities. The output of the gas sensor can be in the form of an analog or digital signal, which can then be read by a controller or data logger.