Learn about smoke detectors - Working principle of fire alarms
Learn about smoke detectors - Working principle of fire alarms
Learn about smoke alarms - Operating principles of fire alarms
Dong Nam Fire Protection Company - As everyone knows, currently on the market there are different fire alarm devices suitable for detecting different fires: ionization and photoelectric fire alarm devices. It can be said that smoke detectors are the most important devices that help sense and detect fires promptly.
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What do you know about smoke detectors?
- Ion smoke detectors use a radioactive isotope that emits alpha-α particles called Americium 241 to create ionization in the air. Ionization smoke detectors are very sensitive to flaming fires. When some smoke particles enter the ionization chamber, there will be a strong force inside to detect the decrease in electric current between the two poles and send out an alarm signal.
- The cost of an ionization smoke detector is cheaper than an optical smoke detector, but false alarms are more likely to occur and are only suitable for fires with invisible smoke particles.
Photoelectric smoke detector
Sensitive photoelectric smoke detector suitable for all fires
A smoke detector consisting of an optical smoke detector consisting of a small light source, a light converging lens and a photoelectric sensor. The above components are all placed in one location, the optical chamber. The structure and design of the photovoltaic chamber is very scientific as outside light cannot penetrate, but if there is smoke it will enter easily, at which point the internal devices will operate and activate the alarm system. dynamic.
- The advantage of photoelectric smoke detectors is that they detect smoldering fires very well, and the advantage of luminescent smoke detectors over ion smoke detectors is that they can meet all types of fires. and has a much longer lifespan. That's why optical smoke detectors are trusted and popular on the market.
= Above are two lines of ion smoke detectors and photoelectric smoke detectors, which are important smoke detectors. To buy quality and safe products that maximize their effectiveness, look for Search at a reputable and quality address. If you are interested and want to buy the best fire alarm equipment, please come to Dong Nam Technical and Technology Trading Company Limited.
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