How Does A Fire Detector Sense The Fire?


Presentation Description

Fire detectors have the ionized sensor with an electronic alarm that is the most reliable and inexpensive way of detecting smokes and fires.


Presentation Transcript

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How Does A Fire Detector Sense The Fire Nowadays fre detectors are very commonly used. They sense the products resulting from fre such as heat smoke and gas ultraviolet or infrared light radiation. Fire detectors are used in all types of buildings. We can smell the smoke and take some action if fre breaks out in daytime but if we are sleeping at night we will not be able to do anything. It can whip the oxygen that we require to breathe and generate harmful toxic like carbon monoxide gas. This harmful gas can transmit us into a poisonous and deep slumber from which we will not be able to recover. In a survey in the United States people often die from house fres than natural disasters. Luckily now we have the electronic fre detectors and alarms that is most reliable and inexpensive way of detecting smokes and fres. How Does A Fire Detector Work The fre detector should be screwed to your ceiling as the smoke heads upward when it starts to burn. As the fre generates warm gases and due to the reason of being less opaque than the normal air it rises in the upward direction also swirling the minute smoke particles up. Some fre detectors are called ionization fre detectors. In this kind of detector there is an ionization chamber which is open to the air flled up with particles called ions which are also known as atoms and they consists of electrons to make it positively charged nuclei. You must be thinking from where these ions come from. Within the chamber a tiny piece of chemical element is there which is known as americium. The americium continuously emits out small radioactive particles known as alpha particles that leaks into the detection chamber. In this process these particles turn the molecules into positively and negatively charged ions after crashing into the air molecules. The ions and the electrons rush in opposite direction between two electrodes. A current fows between the circuit and electrodes when the electrons and the ions are moving. On the other hand when a fre breaks out the smoke particles start clogging up the ionization chamber and enters into the fre detector. They close up the electric current and attach themselves to the ions. The alarm is ring speedily as the circuit in the fre detector detects this change. The circuit shuts down the ions move back and forward the electrodes as done earlier and the detection chamber clears itself once the fre is settled out and all the smoke is vanished. Get A Fire Detector Now If you are confused because of the fre detector types we are here to help you in purchasing the right one. There are many types of fre detectors nowadays. These are priced economically and can save your life which is priceless. There are ionization type alarms and photoelectric alarms both works well for the same. According to a detailed study done by the US National Institute of Standards and T echnology the ionization type alarms provided fairly better result as compared to the photoelectric alarms. However the photoelectric alarms provide comparatively faster response in smouldering fres as compared to the ionization type of alarms. Nevertheless fre detectors are trivially inexpensive as compared to the cost of the damage done by the fre and of course to the lives of people which is more precious.