What type of sensors are used in combustible gas alarms?

njshunsheng01

What type of sensors are used in combustible gas alarms? [Copy link]

I need help. I want to ask what type of sensors are normally used in flammable and toxic gas alarms?

pcf2000

Pay attention

chunyang

There are gas sensors for various common fuel gases and toxic gases, such as carbon monoxide (the main component of coal gas in the strict sense), methane (the main component of natural gas), butane (the main component of liquefied gas), etc., which have specific gas sensors.

strong161

Most of them are electrode type.

lct2000

What is the concept of type? Generally, the electrochemical principle is used for measuring toxic gases, and the catalytic combustion principle is used for measuring combustible gases (flammable and explosive gases). There is also the infrared principle (more expensive). Of course, these are all industrial-grade. In addition to these two types, the civilian-grade ones also have the semiconductor principle. I am professional in gas and temperature and humidity. Let me show you the picture. Pictures speak louder than words. Generally, the alarm contains this kind of sensor probe. Combustible gas: Toxic gas:

lct2000

In addition, technical support is also very important in the development of sensors. We provide R&D-level technical support and recommend circuits.

鸿益科技

Choose a brand based on your accuracy requirements, such as Honeywell, CT, Genben, and domestic brands include Weisheng. According to the gas type, it can be carbon monoxide, CH4 methane, etc. According to power consumption, accuracy, anti-interference ability and other requirements, it can be divided into electrochemical, catalytic combustion, semiconductor sensors,